r/psychologyofsex

Two thirds of straight women are unwilling to date a bisexual man, compared with one third of straight men unwilling to date a bisexual woman

A study analyzing facial attractiveness using standardized, makeup-free photos found that men rated women an average of 54.23/100, while women rated men 33.70/100. Both rating distributions were roughly bell-shaped, but they were skewed differently.

Men are drastically more likely to die when living without a partner while Women don't show a significant effect

We often assume that men underestimate how much sexual objectification women experience. But new research challenges that assumption: men sometimes estimated higher rates of objectification than women reported experiencing themselves.

In a longitudinal study, people with 9+ premarital sexual partners had about 3 times the adjusted odds of divorce compared with those who had none

The “fraternal birth order effect” refers to the finding that each additional older brother is linked to higher odds of male homosexuality. This pattern has been found repeatedly in samples of gay men, but a new study also found the same pattern among bisexual men.

Winning the lottery increased men's likelihood of marriage and reduced their long-term divorce risk, while for women it increased the probability of divorce in the short term, with no significant long-term effect.

Male Partner Attractiveness Predicts Ovulatory Shifts in Women’s Attraction to Other Men (partial r = −.36): Lower Sexual Attractiveness, Greater Shifts; Status, Money, and Intelligence Show No Similar Effect

Male sexual desire during a relationship doesn't decline much, while female sexual desire declines quite considerably.

“Roster dating” involves dating multiple non-committed partners at the same time and maintaining an informal roster. A new study found rosters offered sex, validation, emotional support, and protection from dating uncertainty, suggesting they may be a distinct relationship form.