A woman's sexual drive reaches its peak just before her period.
Men reach their sexual peak at 17 years of age.
The testes increase by 50% in size when a man is aroused.
60% men get erect nipples when aroused.
Women are more likely to reach orgasm when their partners penis is larger than 5.8 inches.
Short women are more feminine than tall women because of their high estrogen levels, causing men to biologically find them more attractive.
Women suffer from more nightmares than men, but men are more likely to dream of sexual intercourse.
When a woman is attracted to a man, she speaks in a higher pitch than normal.
17% of women struggle with porn addiction. Only 10% of men do!
The average human has seven sex fantasies in a day.