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ORIGINAL PAPER
Post Sex Affectionate Exchanges Promote Sexual and Relationship
Satisfaction
Amy Muise •Elaine Giang •Emily A. Impett
Received: 18 May 2013 / Revised: 14 November 2013 / Accepted: 2 February 2014
ÓSpringer Science+Business Media New York 2014
Abstract The current research examined the role of post
sex affection in promoting sexual and relationship satisfac-
tion in ongoing romantic partnerships. Since romantic part-
ners view the period after engaging in sex as an important time
for bonding and intimacy, we sought to determine if and how
the duration and quality of post sex affection might promote
satisfaction in romantic relationships. In two studies, we
tested the link between post sex affectionate behavior (e.g.,
cuddling, caressing, shared intimacy) and sexual and rela-
tionship satisfaction. In Study 1, a cross-sectional survey of
individuals in romantic relationships (N=335), duration of
post sex affection was associated with higher sexual satis-
faction and, in turn, higher relationship satisfaction. In Study
2, a daily experience study of 101 established couples
(N=202) with a 3-month follow-up, day-to-day changes in
post sex affection duration and quality were associated with
both partners’ sexual and relationship satisfaction, and engag-
ing in longer and more satisfyingpostsexaffectionoverthe
course of the study was associated with higher relationship and
sexual satisfaction 3 months later. In general, the pattern of
results was consistent for men and women, but the associ-
ation between the duration of post sex affection and rela-
tionship satisfaction was stronger for women than for men
(Study 1) and women, but not men, felt more sexually
satisfied when their partner reported higher quality post sex
affection (Study 2). The findings suggest that the period after
sex is a critical time for promoting satisfaction in intimate
bonds.
Keywords Post sex affection Sexual satisfaction
Relationship satisfaction Cuddling Couples
Introduction
Sexuality is a key factor in shaping happiness and satisfaction
in romantic relationships (for review, see Impett, Muise, &
Peragine, 2014). Both men and women report greater satis-
faction with their sex lives when their frequency of sex is high
(Laumann, Gagnon, Michael, & Michaels, 1994) and this
association has also been documented in non-Western coun-
tries such as China (Cheung et al., 2008) and Iran (Rahmani,
Khoei, & Gholi, 2009). Little is known, however, about the
specific aspects of a sexual experience that contribute to high
quality intimate bonds. Previous research indicates that romantic
partners view the period of time after engaging in sex as
important for bonding and intimacy (Hughes & Kruger, 2011;
Kruger & Hughes, 2010); however,we do not yet know if and
how the duration and quality of post sex affection influence
sexual and relationship satisfaction in ongoing romantic
partnerships.
In the context of established relationships, both men and
women indicate a desire to engage in affectionate behavior,
such as cuddling, caressing, and shared intimacy, with a
partner after sex (Hughes & Kruger, 2011; Kruger & Hughes,
2010). In a recent study of individuals in committed rela-
tionships, two-thirds of participants reported that they expected,
at least sometimes, to engage in cuddling after sex and one-third
of their recent cuddling experiences occurred after sex (van
Anders, Edelstein, Wade, & Samples-Steele, 2013). Given that
the potential for bonding and intimacy may be at its peak after
A. Muise (&)E. A. Impett
Department of Psychology, University of Toronto Mississauga,
3359 Mississauga Road North, Mississauga, ON L5L 1C6, Canada
e-mail: amy.muise@utoronto.ca
A. Muise E. Giang
Department of Psychology, University of Guelph-Humber,
Toronto, ON, Canada
123
Arch Sex Behav
DOI 10.1007/s10508-014-0305-3
sex(Halpern&Sherman,1979), in the current study, we tested
the central prediction that people who report engaging in post
sex affectionate activities for a longer duration and who feel
satisfied with their post sex activities will report feeling more
satisfied with their sex lives and, in turn, be more satisfied with
their relationship. That is, we tested the prediction that sexual
satisfaction mediates the association between post sex affection
and relationship satisfaction.
Affection and Satisfaction in Relationships
Affectionate behaviors in general have been shown to be an
important aspect of relationship quality (Gulledge, Gulledge,
& Stahmann, 2003; Heiman et al., 2011). In a sample of long-
term couples, the frequency of cuddling and kissing was
associated with higher sexual satisfaction for men and women
and with overall relationship satisfaction for men (Heiman
et al., 2011). Among college students, those who report more
frequent physical affection, such as kissing, cuddling and
hugging, also report greater relationship quality, including
the ability to resolve relationship conflict more easily (Gull-
edge et al., 2003). Kissing is a prominent display of affection
in romantic relationships that has been shown to have impli-
cations for relationship quality and physical health (Floyd
etal., 2009;Gulledgeetal.,2003). In new relations hips, kissing
may be used as a‘‘mate assessment device’’ or a strategy that
people use to assess whether they might be compatible with a
potential partner (Hughes, Harrison, & Gallup, 2007). In both
new and ongoing relationships, kissing is a way to initiate or
increase the chances of having sex (Hughes et al., 2007), to
increase and maintain emotional closeness (Hughes& Kruger,
2011; Hughes et al., 2007),and has been shown to relieve stress
(Floyd et al., 2009). In one study, couples were randomly
assigned to one of two groups. The first group was told to
increase the frequency of kissing in their relationship and the
other group was given no such instructions. The couples who
increased their frequency of kissing reported higher relation-
ship satisfaction 6 weeks later as well as lower levels of stress
(Floyd et al., 2009).
Given that people in romantic relationships view the time
periodafter sex asimportantforbondingandintimacy(Hughes
&Kruger,2011;Kruger& Hughes,2010)and researchershave
argued that post sex activities are an understudied aspect of a
sexual experience that may contribute to sexual satisfaction
(Halpern & Sherman, 1979), in the current research, we con-
sider affectionate behaviors that occur in the specific time
period after couples engage in sex. In one study, researchers
considered a broad range of post sex activities and identified
‘‘intimacy and bonding’’ as one category that included cud-
dling, caressing, and intimate talk with a partner (Hughes &
Kruger, 2011). In a recent study, cuddling was perceived as a
nurturing act, but was also experienced as at least somewhat
sexual (van Anders et al., 2013), suggesting that post sex
affection may be an important way that sexual experiences
are linked to overall relationship quality. Therefore, in the
current research, we consider whether people who engage
in post sex affectionate activities for a longer duration and
report being highly satisfied with these activities will report
higher overall sexual and relationship satisfaction.
Sexual Satisfaction and Relationship Satisfaction
A key component of relationship satisfaction concerns peo-
ple’s feelings of satisfaction with the sexual aspects of their
relationship (Byers, 2005; Sprecher, 2002). People who are
the most satisfied with their sex lives are also the most sat-
isfied with their relationships and this is true for both dating
and married couples (Brezsnyak & Whisman, 2004; Regan,
2000; Sprecher, 2002). In a study of university students in
dating relationships, changes in sexual satisfaction were pos-
itivelyassociatedwithchangesinrelationshipsatisfactionover
4 years (Sprecher, 2002). Among individuals in long-term
relationships, changes in sexual satisfaction occurred concur-
rently with changes in relationship satisfaction over an 18-
month time period (Byers, 2005). Research has also shown
that how one partner feels about their sex life impacts the
other partner’s feelings. The extent to which one person per-
ceives the sexual relationship as rewarding versus costly con-
tributes to their romantic partner’s sexual satisfaction above and
beyond the partner’s own reports of rewards and costs (for
review, see Byers & Wang, 2004).
Both the frequency and quality of sexual interactions con-
tribute to the quality of romantic relationships (Byers, 2005;
Laumann et al., 1994; Sprecher, 2002). Men and women who
report engaging in more frequent sex report higher sexual sat-
isfaction (Laumann et al., 1994; Lui, 2003) and areless likely to
break-up (Traeen, 2010;Yabiku&Gager,2009). In addition,
dating and married couples who report greater sexual satis-
faction also report greater relationship satisfaction and stability
(Brezsnyak & Whisman, 2004;Regan,2000; Sprecher, 2002).
In some research, however, physical intimacy and affection
have beenfound to be more stronglyassociated with sexualand
relationship satisfaction than sexual frequency (Gulledge et al.,
2003; Heiman et al., 2011). Given this, we expected post sex
affectionate behavior to contribute to people’s feelings of
sexualsatisfaction and this will bea key reason whypeople who
engage in more post sex affection report higher relationship
satisfaction.
Gender Differences
The few empirical studies on after sex activities have been
guided by evolutionary theory and have focused on gender
differences in the importance that men and women place on
engaging in a variety of post sex activities. Given that women
are more limited in the number of children they can have and
Arch Sex Behav
123
invest more heavily in each child, they tend to be more selec-
tive in choosing sexual partners and place more emphasis on
pair-bonding (Buss & Schmitt, 1993; Gangestad & Simpson,
2000;Trivers,1985). After a first sexual experience, women
are more likely to experience positive affective shifts, such as
greater feelings of love, as a way to establish a longer-term,
committed relationship (Haselton & Buss, 2001). In terms of
post sex activities, in one study, men placed more importance
on continuing sexual activity and other external rewards (e.g.,
eating,drinking or smoking)than women, particularlyin short-
term relationships. Incontrast, women place more importance
on affection and intimate talk after sex (Hughes & Kruger,
2011). In long-term relationships, however, there are fewer
gender differences; both men and women value affection and
intimacy with a long-term partner after sex (Hughes & Kruger,
2011). Although less pronounced in long-term compared to
short-term relationships, in general, women value post sex
affectionmorethanmenandreport less satisfaction when
their desired amount of after sex bonding is not realized
(Kruger & Hughes, 2010).
Predictions of the Current Research
In two studies, we tested our central prediction that post sex
affection—defined as shared intimacy during the time period
after engaging in sex, such as cuddling, kissing, and intimate
talk—would be associated with higher sexual and relation-
ship satisfaction. In Study 1, a cross-sectional survey of indi-
viduals in romantic relationships, we predict that a longer
average duration of post sex affection will be associated
with higher sexual satisfaction and, in turn, higher relation-
ship satisfaction. In Study 2, a daily experience study of
established couples with a 3-month follow-up, we predicted
that on days when couples engage in a longer duration of post
sex affection and report higher quality post sex affection, they
will report higher daily sexual satisfaction and, in turn, higher
relationship satisfaction. Given that a person’s feelings about a
sexual experience impact their partner’s feelings (for review,
see Byers& Wang, 2004), in Study2, we also predicted thatone
partner’s reported quality of post sex affection would be asso-
ciated with the other partner’s daily sexual and relationship
satisfaction. In addition, we predicted that engaging in more
post sex affection and feeling more satisfied with post sex
affection would be associated with both partners’ feelings of
sexual and relationship satisfaction over time. Inboth studies,
we also tested the prediction that the association between post
sex affectionand sexual andrelationship satisfactionis stronger
for women than men. Finally we expected that post sex affec-
tion will be associated with sexual and relationship satis-
faction above and beyond general affection and other aspects
of the sexual experience, such as the frequency with which
couples engage in sex as well as the duration of foreplay and
sex.
Study 1
In Study 1, we conducted a cross-sectional survey of indi-
viduals in dating relationships to determine whether the
duration of post sex affection was associated with increased
sexual and relationship satisfaction. We predicted that people
who report engaging in post sex affection for a longer duration
will report higher levels of relationship satisfaction. We also
predictedthat the reason why engagingin post sex affection for
longer periods of time leads to increased relationship satis-
factionis because people feel moresatisfied with theirsex lives
overall. In addition, we tested gender as a moderator of these
associations.
Method
Participants and Procedure
Participants from the United States were recruited through
Amazon’s Mechanical Turk (MTurk). MTurk is an online
‘‘open marketplace’’in which ‘‘requesters’’(people who need
a task done) post the task they need to be done on the site,
where‘‘workers’’(people who do the task) can select a task to
complete. Burhmester, Kwang, and Gosling (Buhrmester
et al., 2011) found that participants recruited through MTurk
are as or more demographically diverse than those recruited
from standard Internet samples or typical college samples and
that data obtained from this source are at least as reliable as
those obtained via traditional methods. People who accessed
the survey were first taken to an online consent form and those
who indicated agreement were allowed to continue with the
survey. The Research Ethics Board (REB) at the University of
Toronto approved this research.
To be eligible to participate in the online survey, partici-
pants had to be currently involved in a romantic relationship
and pass an attention check in the survey (i.e., a question
asking participants to select a certain response option to
ensure he or she was paying attention). Sixteen participants
(4 %) were not currently in a romantic relationship and an
additional 44 participants (12 %) did not pass the attention
check; therefore their data were not included in the current
analyses. In the final sample (N=335), participants (138
men; 197 women) ranged in age from 18 to 64 years (M=31.0,
SD =9.1) and comprised a diverse range of ethnic backgrounds;
65 % were European, 10 % were African American, 9 % were
Asian, 4.5 % were Latino or Mexican, 2 % were Native Amer-
ican, 1.5 % were Indian, and 8 % self-identified as‘‘other.’’ Most
participants were married or cohabitating (84 %) and the
majority of participants (90 %) identified as heterosexual.
Participants had been in their current relationship for between
4 months and 30years (M=7.5 years, SD =8.4). Approxi-
mately 40 % of the sample had children (N=133) and of
these, most (74 %) had one or two children. The majority of
Arch Sex Behav
123
participants (59.4 %) reported their annual household income
as $50,000 or less; 10 % of the sample reported over $100,000
inannualhouseholdincome.Each participantwas paid $.60 for
completing the 30-min online survey.
Measures
Relationship Satisfaction Relationship satisfaction was
assessed with the 5-item Satisfaction subscale (a=.97,
M=6.94, SD =2.04) of the Investment Model scale (Rusbult,
Martz & Agnew, Rusbult et al., 1998). Items from this mea-
sure, such as‘‘I feel satisfied with our relationship,’’were rated
on a 9-point scale (1 =do not agree to 9 =agree completely).
Sexual Satisfaction Sexual satisfaction was measured using
the 25-item Index of Sexual Satisfaction (ISS) (Hudson, Har-
rison, & Crosscup, 1981). Items were assessed on a 7-point
scale (1 =none of the time to 7 =all of the time) and included:
‘‘I think our sex is wonderful’’and‘‘Our sex life is monotonous
(reverse scored)’’ (a=.96, M=5.26, SD =1.19).
Duration of Post Sex Affectionate Behaviors Participants
responded to one item about their average duration, in min-
utes, of affectionate behaviors (e.g., cuddling, shared inti-
macy) after sex (M=15.53, SD =20.28).
Duration of Foreplay Participants responded to one item
about their average duration of foreplay (e.g., touching,
kissing and other sexual activities that occurred before sex) in
minutes (M=13.07, SD =14.58).
Duration of Sex Participants responded to one item about
their average duration of sexin number of minutes (M=17.55,
SD =15.84).
Sexual Frequency Participants were asked to indicate, on
average, how often they engaged in sex with their partner per
month (1 =less than a once a month to 6 =daily;M=4.03,
SD =1.37).
General Affection Participants were asked to respond to
one item about the general frequency of affection (e.g., cuddling,
kissing, caressing) in their relationship (1 =never to 7 =daily;
M=5.74, SD =1.67).
Statistical Analyses
We conducted all of our analyses using multiple regress ion in
the SPSS 20.0 computer program. To test our mediation models,
we constructed a 95 % confidence interval for the indirect effect
using bootstrapping techniques with 5,000 resamples (INDI-
RECT SPSS macro) (Preacher & Hayes, 2008; Preacher & Selig,
2010). The indirect effect is significant when the confidence
interval does not include zero. Finally, to test for moderation,
we conducted simple slope analyses according to the principles
of Aiken and West (1991).
Results
Post Sex Affection and Sexual and Relationship Satisfaction
Our first hypothesis was that the longer people report engaging
in post sex affectionate behaviors, the more satisfied they will
feel with their relationships. As expected, people who reported a
longer duration of post sex affection reported higher relationship
satisfaction, b=.21, t(317) =3.86, p\.001. Next, we tested our
prediction that people who reported a longer duration of post sex
affectionate behaviors would report higher sexual satisfaction
and this would account for the association between post sex
affection and relationship satisfaction. As shown in Fig. 1,
people who engaged in more affectionate behaviors after sex
reported higher sexual satisfaction. When affectionate behav-
iors andsexualsatisfaction were both entered as predictors of
relationship satisfaction, sexual satisfaction was signifi-
cantly associated with relationship satisfaction and the associ-
ation between post sex affection and relationship satisfaction
dropped to non-significance. Therefore, the results indicated
that sexual satisfaction mediated the association between
duration of after sex affectionate behaviors and relationship
satisfaction (CI
95 %
[.01, .03]).
The Role of Gender
To test our hypothesis that post sex affectionate behavior
would be more strongly associated with women’s sexual and
relationship satisfaction than men’s, we tested gender as a
moderator of our effects. The results indicated that gender
was a marginally significant moderator of the association
between duration of post sex affection and relationship sat-
isfaction, b=.14, p=.06. As depicted in Fig. 2, simple slope
analyses revealed that post sex affectionate behavior was
Sexual
satisfaction
Post sex affection
duration
Relationship
satisfaction
= .21, t(317) = 3.86, p< .001
= .07, t(316) = 1.55, p = .12)
= .23, t(317) = 4.17, p< .001 = .63, t(316) = 14.32, p< .001
Fig. 1 Sexual satisfaction mediating the association between post sex
affectionate behaviour duration and relationship satisfaction in Study 1
Arch Sex Behav
123
significantly associated with relationship satisfaction for
women, b=.65, t(315) =3.91, p\.001; women who engaged
ina longerdurationof post sex affectionreportedhavinggreater
relationship satisfaction. However, for men, their duration of
post sex affectionate behavior was not significantly linked to
their relationship satisfaction, b=.23, t(315) =1.55. Gender
did not, however, moderate the association between after sex
affection and sexual satisfaction, b=.11.
Given that there were gender differences in the association
between post sex affection and relationship satisfaction, we
conducted the mediation analyses separately for men and
women to determine if the model was significant for both the
men and women in our sample. Our results indicated that the
indirect effect between post sex affection and relationship
satisfaction through sexual satisfaction was significant for
both men (CI
95 %
[.001, .02]) and women (CI
95 %
[.01, .04]).
Therefore, although there was not a significant direct effect
between duration of post sex affection and relationship satis-
faction for men, there was a significant indirect effect through
sexual satisfaction.Men who reported a longerduration of post
sex affectionate behavior reported higher sexual satisfaction
and this, in turn, was associated with higher relationship
satisfaction.
Ruling Out Alternative Explanations
To bolster our confidence in our results, we conducted a series
of additional analyses to rule out possible alternative expla-
nations for our findings. First, it is possible that the associa-
tions between post sex affection and sexual and relationship
satisfaction can be explained by general levels of affection in
a relationship and are not specific to the time period after sex.
Although general frequency of affection was associated with
post sex affection duration, r=.23, p\.001, all of our effects
remained significant when we controlled for the general fre-
quency of affection in the relationship.
Second, it is possible that the association betwee n duration
of after sex affection and relationship satisfaction can be
explained by duration of sexual activities in general. How-
ever, we re-ran our analyses controlling for the duration of
foreplay and sex and the association between after sex affec-
tionate behavior duration and relationship satisfaction remained
significant. In fact, when duration of foreplay, sex and post sex
affectionate behavior were all entered as predictions, both
foreplay (b=-.07) and sex duration (b=.06) did not sig-
nificantly predict relationship satisfaction. In addition, after
controlling for these factors, the association between the
duration of post sex affection and sexual satisfaction, as well
as the mediation analyses, remained significant.
Third, it is possible that people who report a longer dura-
tion of post sex affection engage in more frequent sex and this
accounts for the association between after sex affection and
sexual and relationship satisfaction. However, when we
controlled for how frequently participants reported engaging
in sex, all of our effects remained significant. Most critically,
sexual frequency did not moderate the association between
after sex affection and sexual satisfaction (b=.04) or rela-
tionship satisfaction (b=-.02). These findings suggest the
duration of post sex affection is associated with sexual and
relationship satisfaction regardless of how frequently people
report engaging in sex with their romantic partner.
Next, we considered whether our effects were influenced
by the presence of children in a relationship. Parents may have
less time alone to engage in sexual activities compared to
people who are childfree and this may reduce their duration of
after sex affection. Indeed, parents reported a shorter duration
of after sex affection (M=13.46 min, SD =18.38) compared
to people without children (M=16.94 min, SD =21.41) but
this difference was not significant, F(1, 320) =2.28. We did,
however, find that the presence of children in a relationship
(0 =no children, 1 =one or more children) significantly
moderated the association between after sex affection and
sexual, b=.20, p\.01, and relationship satisfaction, b=.17,
p=.01. Simple effects tests revealed that duration of after sex
affection was a stronger predictor of sexual and relationship
satisfaction for parents compared to those without children.
For those who had children, duration of after sex affection
was a significant predictor of sexual satisfaction (b=.46,
p\.001) and relationship satisfaction (b=.40, p\.001)
whereas, for people without children, duration of after sex
affection was marginally associated with sexual (b=.11,
p=.09) and relationship satisfaction: (b=.10, p=.10).
Finally, although our theoretical model suggests that after
sex affection promotes relationship satisfaction via sexual
satisfaction, it is also possible that people who feel more
satisfied with their relationships are more likely to engage in
post sex affection for a greater length of time and, in turn,
5
5.5
6
6.5
7
7.5
8
Low After-Sex Affection Hi
g
h After-Sex Affection
Relationship Satisfaction
Men
Women
Fig. 2 Gender moderating the association between post sex affection
duration and relationship satisfaction in Study 1
Arch Sex Behav
123
report higher sexual satisfaction or that people who engage in
a longer duration of post sex affection are more likely to report
higher relationship satisfaction and, in turn, experience higher
sexual satisfaction.Therefore, we conducted a series of reverse
mediationsto determine if an alternate mediation model could
better explain the associations between after sex affection,
relationship satisfaction, and sexual satisfaction. We found
some support for the alternative models but the effects were
relativelyweaker (accounting for 5–23 % of the overall effect)
compared to our hypothesized mediation model (accounting
for 65% of the overall effect).
Discussion
Study 1 provided initial support for our prediction that people
who engage in a longer duration of post sex affectionate
behavior report higher sexual satisfaction and, in turn, feel
more satisfied with their relationships in general. Duration of
after sex affection predicted higher sexual and relationship
satisfaction above and beyond the effects of duration of
foreplay and sex and sexual frequency, all factors that have
previously been linked to more satisfying sexual experiences
(Call, Sprecher, & Schwartz, 1995; Colson, Lemaire, Pinton,
Hamidi, & Klein, 2006; Mulhall, King, Glina, & Hvidsten,
2008; Smith et al., 2011). Duration of after sex affection also
seemed to be particularly important for couples who have
children. The associations between duration of after sex affec-
tion and sexual and relationship satisfaction were strongest for
participants with children. Previous research has found that
couples who have children report less frequent sex (e.g., Call
et al., 1995), so it is possible that additional bonding time after
sex is even more important for couples who may face challenges
finding time for intimate connection.
Our mediation model worked similarly for men and
women. For both men and women in our sample, engaging in
post sex affectionate behavior for a longer length of time was
associated with higher sexual satisfaction and, in turn, higher
relationship satisfaction. However, for women, there was a
direct link between after sex affection and relationship satis-
faction whereas, for men,duration of after sex affection did not
have a direct effect on their relationship satisfaction, but was
associated with their relationship satisfaction indirectly through
sexual satisfaction. Research on physical affection in general
has found that, in a sample of older adult couples in long-term
relationships, engaging in more frequent affection was associ-
ated with greater sexual and relationship satisfaction for men
and greater sexual satisfaction for women (Heiman et al., 2011).
Study 2
In Study 2, we conducted a 21-day daily experience study of
romantic couples with a 3-month follow-up to extend the
results of our initial study in four key ways. First, the findings
from Study 1 indicate that people who report a greater dura-
tion of post sex affection feel more satisfied with their sex
lives and with their relationships in general. A critical goal of
our second study was to extend these between-person find-
ings to determine if within-person changes in duration of post
sex affection are associated with increased daily sexual and
relationship satisfaction. More specifically, we predicted that
on days when people report engaging in post sex affectionate
behavior for a longer duration than their average, they will
feel more sexually satisfied and, in turn, more satisfied with
their relationship. Second, the findings from Study 1 focus
entirely on the duration of post sex affectionate behavior, so in
our next study, we sought to also investigate people’s feelings
of satisfaction with these experiences. Third, whereas our first
study included only one partner from romantic couples, our
second study was dyadic in nature, allowing us to test novel
research questions regarding the influence of one partner’s
feelings of satisfaction with post sex affection on the other
person’s sexual and relationship satisfaction. In particular,
we predicted that on days when people feel more satisfied
with their post sex affectionate behavior, both partners will
report feeling greater sexual and relationship satisfaction.
Finally, we asked both partners to report on their general
sexual and relationship satisfaction 3 months after complet-
ing the diary study in order to consider how post sex affection
duration and quality influences feelings of satisfaction with
one’s sex life and relationship over time. As in Study 1, we
tested whether these associations would be stronger for
women than for men.
Method
Participants and Procedure
Participants were recruited through online postings and class-
room visits at a small Canadian university and through online
postings on the websites Kijiji and Craigslist in the Greater
Toronto Area for a ‘‘Couples Research Study.’’ Participants
were informed in the ads that the study included questions
about sexuality. To be eligible to participate, both partners in
a romantic relationship had to agree to take part in the study
and be over the age of 18 years. Eligible couples also had to
see their partner at least five times a week and be sexually
active. Those who were interested in participating in the study
emailed the researchers for more information about the study
and all who met the eligibility criteria agreed to participate.
After couples agreed to participate, each partner was emailed
a unique link allowing them to access the online surveys. The
University of Toronto REB approved this research protocol.
A total of 101 couples (202 people), predominantly het-
erosexual (95; 5 lesbian couples and 1 gay couple) and ran ging in
age from 18 to 53 years (M=26, SD =7) participated in the
Arch Sex Behav
123
study. Nearlyhalf of the participantswere cohabitating (29 %),
married (17%) or engaged (3%); the remaining participants
were in a committed relationship, but not living together. Only
four couples in this sample had children. Participants reported
beingin theircurrentrelationship between 6 months and 22 years
(M=4.45, SD =3.76) and identified as a diverse variety of
ethnic backgrounds; 53.1 % were White (Caucasian), 15.2 %
were European, 13.2 % were Asian, 10.4% were Black (Afri-
can-American), 4.7 % were South Asian, 3.3 % were Latin Amer-
ican, 2.8 % were South East Asian, and 1.4 % were Arab/West
Asian. The total percentage for all the ethnic backgrounds
exceeded 100 % because participants were able to select mul-
tiple ethnic identities.
On the first day of the study, participants completed a 30-
min background survey. Then, each day for 21 consecutive
days, participants completed a 5 to 10-min daily survey
(M=17 diaries, SD =3, range =2–21). Participants were
asked to begin the study on the same day as their romantic
partner and to not discuss their responses until the study was
completed. A total of 168 (83%) of these participants com-
pleted a 10-min follow-up survey 3months after the comple-
tion of the daily diary study. Each participant was paid up to
$40 CAD (via gift cards) for their participation in the back-
ground and daily surveys; payment was pro-rated based on
the number of daily diaries completed. Participants were
paid an additional $10 for participating in the follow-up
survey.
Person-Level Measures
Relationship Satisfaction Relationship satisfaction was
assessed at both background and follow-up using the 5-item
Satisfaction subscale from the Investment Model scale (Rusbult
et al., 1998). Items were rated using a 7-point scale (1 =strongly
disagree to 7 =strongly agree) and included ‘‘I felt satisfied
with my relationship with my partner today’’ (background:
a=.94, M=5.97, SD =1.06; follow-up: a=.96, M=5.74,
SD =1.27).
Sexual Satisfaction Sexual satisfaction was assessed at both
background and follow-up using the 5-item Global Measure
of Sexual Satisfaction (GMSEX) (Lawrance & Byers, 1995).
Each item was assessed on 7-point bipolar scale: good-bad,
pleasant-unpleasant, positive–negative, satisfying-unsatisfying,
valuable-worthless (background: a=.94, M=29.63, SD =5.38;
follow-up: a=.93, M=29.50, SD =6.24).
Daily-Level Measures
In each daily survey, participants were asked to report their
daily relationship satisfaction and indicate whether they
engaged in sex with their partner on that day. On days when
sex occurred, the participants reported their daily sexual
satisfaction, duration of their after sex affectionate behav-
iors, and their daily satisfaction with after sex affection.
Participants engaged in sex an average of four times over the
course of the 3-week diary study (range =1–14; M=4.12,
SD =2.83). We used measures with only a few items or a
single item in the diary study to increase efficiency and
minimize participant attrition (Bolger, Davis, & Rafaeli,
2003).
Relationship Satisfaction Daily relationship satisfaction was
assessed using the 5-item Satisfaction subscale from the
Investment Model scale (Rusbult et al., 1998). Items were
rated using a 7-point scale (1 =strongly disagree to 7 =strongly
agree; a=.90, M =5.67, SD =1.27).
Sexual Satisfaction Daily sexual satisfaction was mea sured
using the 5-item Global Measure of Sexual Satisfaction
(GMSEX) (Lawrance & Byers, 1995;a=.92, M=31.78,
SD =4.46).
Post Sex Affection Duration of post sex affection was mea-
sured using three items that assessed the duration of different
types of post sex affectionate behaviors (cuddling/caressing/
spooning, kissing, and intimate talk). On the days the par-
ticipants reported engaging in sex with their partner, they
reported, in minutes, how long they engaged in post sex
cuddling, caressing and spooning (M=25.91, SD =54.4);
post sex kissing (M=10.36, SD =18.99); and post sex
intimate talk, such as professing love (M=11.66, SD =
17.68). A composite of the three items was used as the
measure of post sex affection (a=.72, M=15.91, SD =
24.41).
Satisfaction with Post Sex Affection On days when partic-
ipants engaged in sex with their partner they responded to one
item about their level of satisfaction with their post sex
behavior on a 7-point scale (1=not at all satisfied to 7=very
satisfied; M =5.91, SD =1.44).
Duration of Foreplay On days when participants engaged in
sex with their partner, they indicated how long, in minutes,
they engaged in foreplay (M=24.24, SD =134.57).
Duration of Sex On the days participants had sex, they
responded to one item about the number of minutes they spent
having sex with their partner (M=26.58, SD =24.35).
General Affection On the first day of the diary study, par-
ticipants responded to one item about how often, on average,
they were affectionate (e.g. cuddling, kissing, caressing) with
their partner (1 =never to 7 =daily;M=5.36, SD =.95).
Arch Sex Behav
123
Statistical Analyses
We analyzed the data with multi-level modeling using mixed
models in SPSS 20.0. We tested a two-level cross model with
random intercepts where persons are nested within dyads and
person and days are crossed to account for the fact that both
partners completed the daily surveys on the same days
(Kenny, Kashy, & Cook, 2006). For the first set of analyses,
we tested the association between duration of post sex
affectionate behavior and daily relationship and sexual sat-
isfaction. Duration of post sex affection was treated as a
couple-level variable, since both partners can be seen as
informants of their daily post sex affection duration. Partners’
reports of after sex affection were significantly correlated
(r=.63, p\.001) and therefore we used the average of the
partners’ reported durations in our analyses. Since the after
sex affection variable was positively skewed (skewness =
3.84, kurtosis =19.22), a logarithmic function (LG10) was
performed to normalize the variable before analyses.
The second set of analyses considered the link between
satisfaction with post sex affection and both partners’ daily
relationship and sexual satisfaction. The Actor Partner
Interdependence Model (APIM) (Kenny et al., 2006)guided
these analyses; models included actor post sex affection
satisfaction and partner postsex affection satisfaction entered
simultaneously as predictors. To avoid confounding within-
and between-person effects, we used techniques appropriate
for a multilevel framework, partitioning all the Level-1 pre-
dictors into their within- and between-variance components,
which were person-mean centered and aggregated respec-
tively (Raudenbush, Byrk, Cheong, & Congdon, 2004;
Zhang, Zyphur, & Preacher, 2009). As such, in these analyses
we report the within-person effects, how day-to-day changes
from a participant’s own mean (or for duration of post sex
affection, a couple’s own mean) were associated with changes
in relationship and sexual satisfaction, while accounting for
between-person differences. In our tests of mediation, we
followed the guidelines for a multilevel mediation outlined
by Zhang et al. and used the Monte Carlo Method of
Assessing Mediation (MCMAM) (Selig & Preacher, 2008)
with 20,000 resamples and 95 % confidence intervals (CIs) to
test the significance ofthe indirect effects.The indirect effectis
significant if the confidence interval does not include zero.
Results
Duration of Post Sex Affection and Sexual and Relationship
Satisfaction
Our first set of predictions concerned the association between
the duration of post sex affection and daily sexual and rela-
tionship satisfaction. On days when a couple engaged in a
longer duration of post sex affection than their average,
partners reported higher daily sexual satisfaction, b=1.28,
SE =.45, p=.004,but there was no direct association between
daily post sex affection and daily relationship satisfaction,
b=.04, SE =.10, p=.73. However, daily post sex affection
had an indirect effect on daily relationship satisfaction through
daily sexualsatisfaction (CI
95 %
[.13, .80]). A s shown in Fig. 3,
on days when a couple engaged in a longer duration post sex
affection than their average, partners reported higher sexual
satisfaction and in turn, higher relationship satisfaction.
Satisfaction with Post Sex Affection and Sexual and
Relationship Satisfaction
Our second set of predictions concerned the association
between quality of post sex affection and the daily sexual and
relationship satisfaction of both partners. On days when
people reported feeling more satisfied with their post sex
affection more than they typically did across the study, they
were more satisfied with their sex lives, b=1.03, SE =.21,
p\.001, and with their relationship in general, b=.14,
SE =.043, p=.001. Controlling for their partner’s own
feelings of satisfaction with post sex affection, on days when a
person reported higher quality post sex affection, their partner
reported greater sexual satisfaction, b=.36,SE =.18, p=.05,
and relationship satisfaction, b=.15, SE =.043, p\.001.
Finally, we tested whether daily sexual satisfaction mediated
the association between satisfaction with post sex affection
and daily relationship satisfaction, but the mediation was not
significant (CI
95 %
[-.001, .001]).
Post Sex Affection and Sexual and Relationship Satisfaction
Over Time
Our next set of predictions concerned the association between
post sex affection duration and quality and sexual and relation-
ship satisfaction over time. To test our hypotheses regarding the
longitudinal effects of post sex affection, we used mixed models
in SPSS 20.0. In these analyses, we focused on aggregate mea-
Daily sexual
satisfaction
Daily post sex
affection duration
Daily
relationship
satisfaction
Indirect effect: (CI95% [.13, .80])
b = 1.28, SE = .45, p= .004 b = .34, SE = .06, p< .001
Fig. 3 Daily sexual satisfaction mediating the association between post
sex affection duration and daily relationship satisfaction in Study 2
Arch Sex Behav
123
sures of couples’ post sex affection duration and both partners’
satisfaction with post sex activities over course of the 21-day
diary, as well as controlled for participants’ sexual and relation-
ship satisfaction at background. As expected, people who
engaged in a longer duration of post sex affection over the
course of the diary reported feeling more satisfied with their sex
lives, b=.71, SE =.19, p\.001, and more satisfied with their
relationship, b=.50, SE =.16, p=.002, at the 3-month follow-
up. In addition, people who were more satisfied with their post
sex affection over the course of the diary reported feeling more
sexual satisfaction, b=.21, SE =.09, p=.02, and relationship
satisfaction, b=.15, SE =.07, p=.04, 3 months later. Finally,
the partners of people who were more satisfied with their post
sex affection reported marginally higher sexual satisfaction,
b=.15, SE =.08, p=.06, and higher relationship satisfaction,
b=.22, SE =.07, p=.002, at follow-up.
The Role of Gender
Our final set of predictions concerned gender differences in
the association between post sex affection and daily sexual
and relationship satisfaction. For the analyses concerning
duration of post sex affection, we used a couple-level variable
to assess duration. To consider whether there were gender
differences in the association between post sex affection
duration and a person’s own daily sexual and relationship
satisfaction, we tested gender as a moderator of these effects.
However, gender did not significantly moderate the daily or
longitudinal effects, suggesting that post sex affection dura-
tion is associated with daily sexual and relationship satis-
faction for both men and women.
For the analyses concerning quality of post sex affection,
we used mixed models in SPSS 20.0 and ran our model
including both actor and partner effects with separate inter-
cepts for men and women (Kenny et al., 2006). We specifi-
cally tested whether any of the effects differed by gender
and the results revealed no significant gender differences in
associations between post sex affection and relationship
satisfaction. Given that in this dyadic study gender was
confounded with sexual orientation, only heterosexual cou-
ples were included in these analyses. For both men and
women, their own satisfaction with post sex affection was
associated with their own daily relationship satisfaction and
their partner’s daily relationship satisfaction. In addition, for
both men and women, their own satisfaction with post sex
affection was associated with their own daily sexual satis-
faction. However, there were significant gender differences in
the association between a person’s satisfaction with post sex
affection and their partner’s sexual satisfaction both daily and
over time. On days when their partner reported experiencing
greater satisfaction with post sex affection, women reported
significantly higher sexual satisfaction, b=.79, SE =.21,
p\.001, but men did not, b=.09, SE =.23, p=.69. Simi-
larly, when a partner reported greater satisfaction with post sex
affection over the course of the diary, women reported signifi-
cantly higher sexual satisfaction 3 months later, b=.63, SE =
.17, p=.001, but men did not, b=.06, SE =.10, p=.57.
Ruling Out Alternative Explanations
In order to strengthen our confidence in our results, we con-
ducted a series of additional analyses to rule out possible
alternative explanations for our findings. First, it is possible
that our effects could be attributed to generallevels of affection
in the relationship. However, the frequency of general affec-
tion was not significantly associated with the duration(r=.10)
or quality (r=.14) of post sex affection over the course of the
diary and all of our effects remained significant when we
controlled for these factors. Since very few couples in this
sample had children, we were not able to tests whether the
presence of children moderates our effects.
Next, it is possible that couples who engage in a longer
duration of post sex affectionate behavior also engage in fore-
play and sexual activity for a longer duration and this might
account for the associations between post sex affection and
daily sexual and relationship satisfaction. Duration of fore-
play was significantly associated with daily sexual satisfac-
tion, b=.02, SE =.01, p=.01, and marginally associated with
daily relationship satisfaction, b=.01, SE =.01, p=.07, and
duration of sex was significantly associated with sexual sat-
isfaction, b=.05, SE =.01, p\.001, and relationship satis-
faction, b=.01, SE =.01, p=.001, but all of the associations
between post sex affection and sexual and relationship sat-
isfaction remained significant when controlling for duration
of foreplay and sex.
Finally, although our theoretical model suggests that post
sex affection promotes daily sexual and relationship satis-
faction, it is also possible that higher levels of relationship
satisfaction lead to more post sex affection or that post sex
affection influences relationship satisfaction and, in turn, sexual
satisfaction. To determine whether an alternative mediation
model could better explain the association between after sex
affection, sexual satisfaction, and relationship satisfaction,
we conducted a series of reverse mediations. Some support
was found for the alternative models (relationship satisfac-
tion mediated the association between sexual satisfaction and
after sex affection and sexual satisfaction mediated the associ-
ation between relationship satisfaction and after sex affection),
but the effects were relatively weak. The alternative models only
accounted for 14 % of the overall effect compared to our model
which accounted for 93–100 % of the overall effect.
Arch Sex Behav
123
Discussion
In Study 2, we extended the findings from Study 1 regarding
the association between post sex affection and sexual and
relationship satisfaction to couples’ daily lives. On days when
couples reported engaging in a longer duration of post sex
affection, they were more sexually satisfied and, in turn, more
satisfied with their relationship. These findings suggest that
day-to-day changes in post sex affection shape couples’
sexual and relationship satisfaction. In addition to duration,
we also found that day-to-day changes in people’s satisfac-
tion with post sex affection were associated with both part-
ners’ sexual and relationship satisfaction. On days when
people reported experiencing higherquality post sex affection,
both partners reported feeling more satisfied with their sexual
experiences and with their relationship in general. In addition,
longer post sex duration and higher quality post sex experi-
ences over the course of the diary were associated with higher
sexual and relationship satisfaction 3 months later.
The pattern of results was similar for men and women with
one exception. When their romantic partners reported feeling
more satisfied with post sex affection both daily and over
time, women felt more sexually satisfied. In contrast, there
was not a significant association between their partner’s after
sex affection satisfaction and men’s sexual satisfaction. How-
ever, for both men and women, when their partner reported
more satisfaction with post sex affection, they reported higher
relationship satisfaction. Studies have shown that women
exhibit positive shifts in mood, such as greater feelings of
love, after engaging in sex and may initiate activities to
promote bonding and gain commitment from a partner after
sex (Haselton & Buss, 2001; Hughes & Kruger, 2011). There-
fore, women might be more influenced by their partners’ after
sex affection satisfaction because they view their partners’
level of satisfaction as a signal of bonding and commitment
(Kruger & Hughes, 2010). However, these findings suggest that
the quality of after sex affection has an important influence on
the daily relationship quality of both men and women.
General Discussion
In a cross-sectional study of individuals in romantic rela-
tionships and a daily experience study of both members of
romantic couples with a 3-month follow-up, we found that
engaging in a longer duration of post sex affection, both in
general and at the daily level, was associated with higher
sexual and relationship satisfaction. In both studies, we found
support for our model that more post sex affection contributes
to feeling more sexually satisfied and this, in turn, leads people to
feel more satisfied with their relationships. Our findings were
consistent with previous research that has identified the period of
time after sex as important for bonding and intimacy (Halpern &
Sherman, 1979; Hughes & Kruger, 2011; Kruger & Hughes,
2010). More critically, usingcross-sectional,daily experience,
and longitudinal methods, we extended this work by showing
for the first time that the duration and quality of after sex
affection was linked with sexual and relationship satisfaction.
Previous research has found that more general affection,
more frequent sex and a longer duration of foreplay and
sexual activities are associated with higher sexual and rela-
tionship satisfaction (Call et al., 1995; Colson et al., 2006;
Heiman et al., 2011; Mulhall et al., 2008; Smith et al., 2011).
We replicated these findings in the current studies but, more
critically, we showed that the duration and quality of post sex
affectionate behavior were significant predictors of sexual
and relationship satisfaction even after accounting for these
other factors. In fact, in Study 1, once post sex affection was
entered into the model with sex and foreplay duration, these
variables became non-significant, suggesting that, in general,
after sex affection may play a more important role in sexual
and relationship satisfaction than foreplay and sex duration.
Our findings were consistent with social exchange theory
linking sexual activities to sexual satisfaction and, in turn,
overall relationship satisfaction. People tend to be the most
satisfied with their sex lives when they experience greater
sexual rewards (e.g., feeling closer to a partner) relative to
sexual costs (e.g., engaging in sexual activities that they do
not enjoy) (Lawrance & Byers, 1995). It seems that post sex
affection tends to be a rewarding aspect of a sexual experience
as it is linked to higher sexual satisfaction and, when people
are satisfied with their sex lives, they also tend to be happier
with their relationship overall (Byers, 2005).
Our pattern of findings across the two studies was similar
for men and women, but in two cases we found support for our
prediction that the links between post sex affection and sexual
and relationship satisfaction would be stronger for women
than for men. In previous research on general affection (not
specific to the post sex context), Heiman et al. (2011) found
stronger associations between affection and sexual and rela-
tionshipsatisfaction for menthan for women. It may be that the
period of time after sex is a particularly important time for
intimacy and bonding for women (Haselton & Buss, 2001;
Kruger & Hughes, 2010) or it may be that the role of affection
in men’s satisfaction changes over time. The sample in Hei-
man et al. included older adults in long-term rel ationships and
research has shown that the importance of having a loving,
affectionate relationship is more closely tied to men’s sexual
satisfaction than to women’s in the 40–59 year age range
(Carpenter, Nathanson, & Kim, 2009). Based on the findings
of Study 2 that women, but not men, felt more sexually sat-
isfied when their partner reported higher quality post sex
affection, it is possible that these exchanges may signal their
partner’s commitment to the relationship and signals of a
partner’s commitment after sex have been shown to be more
important for women than for men (Kruger & Hughes, 2010).
Arch Sex Behav
123
Limitations, Implications, and Future Research
Directions
One limitation of the current research was that the data were
correlational and relied on self-report measures. The daily
experience method used in Study 2 was useful for studying
sexuality because participants reported on their experiences
as close in time to when sex actually occurred. Nevertheless,
participants still reported on their experiences retrospectively
and their responses could have been influenced by other
relationship events that day. In addition, given that the current
data were correlational, we tested a series of reverse media-
tion models in both studies to bolster our confidence in our
model. Although we found the strongest and most consistent
support for our model, these alternative models did reveal
some bidirectional associations between post sex affection,
sexual satisfaction, and relationship satisfaction. As such,
although post sex affection influenced feelings of satisfac-
tion, people who were more satisfied may also be more likely
to engage in affectionate exchanges with their partners after
sexual experiences.
In addition, all possible activities that participants could
engage in after sex were not captured in our study. Our pri-
mary goal in the current research was to assess the role of post
sex affectionate exchanges in intimate relationships, so we
chose to focus on behaviors identified in previous research as
relevant to the post sex experience, including kissing, cud-
dling, and intimate talk (Hughes & Kruger, 2011). However,
we do not know if these are the only behaviors that are
important after sex; it is possible that other physically inti-
mate behaviors, such as massages or falling asleep together,
are important for satisfaction as well.
Despite these limitations, the current findings highlighted
the importance of post sex affectionate behavior in promoting
high-quality sexual and relationship experiences. More spe-
cifically, the within-person findings suggest that daily chan-
ges in post sex affection influence feelings of satisfaction in
a relationship. Therefore, one way for couples to promote
sexual and relationship satisfaction is to make time for shared
intimacy, such as cuddling, kissing, and intimate talk, fol-
lowing their next sexual encounter. The findings also indi-
cated the utility of considering more diverse sexual activities
in future research on sexuality. Although sexual frequency
has been associated with higher sexual and relationship sat-
isfaction (for a review, see Impett et al., 2014), we know little
about the role of sexual variety in the experience of satis-
faction. Some previous research suggests that couples who
engage in a greater variety of intimate behaviors experience
greater satisfaction, especially over time. For example, in
older adulthood, couples who are able to move beyond the
notion that intercourse is the primary or only mode of sexual
expression and whose sex lives incorporate a broader reper-
toire of sexual behaviors seem better able to maintain or
experience heightened sexual satisfaction (Hartmann, Phil-
ippsohn, Heiser, & Ruffer-Hesse, 2004; Hinchliff & Gott,
2008; Potts, Grace, Vares, & Gavey, 2006). In addition, one
study of partnered individuals aged 57–85 demonstrated that
althoug h sexual frequen cy may decline with ag e, the frequ enc y
of non-coital sexual activities, such as kissing, caressing,
and cuddling, was not associated with age (Waite, Laumann,
Das, & Schumm, 2009). As such, and as the current study
demonstrated, considering sexual behaviors beyond intercourse
may provide important and unique insights into how couples can
sustain feelings of sexual and relationship satisfaction in ongo-
ing romantic relationships.
Acknowledgments This work has been supported by a Social Science
and Humanities Research Council (SSHRC) postdoctoral fellowship
and a University of Guelph-Humber Research Grant awarded to Amy
Muise and a SSHRC grant awarded to Emily A. Impett.
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