5 Little-Known Truths About American Sex Lives

Adults using a condom for intercourse were just as likely to rate the sexual event positively in terms of arousal, pleasure and orgasm than when having intercourse without one.

When controlling for age and health status, women ages 18 to 59 whose last event was with a relationship partner indicated greater difficulties with arousal and lubrication yet a greater likelihood of their partner experiencing orgasm as compared with women whose last reported sexual event was with a non-relationship partner.

to 59 engage in a diverse range of behaviors during a sexual event and that greater behavior diversity is related to ease of orgasm for both men and women.
...
In addition, women who engage in a greater number of sexual behaviors may be more likely to experience multiple orgasms and may thus continue sex, or expand on their behaviors, to experience continued pleasure or subsequent orgasms.