A woman a guy has sex with not because she's hot or he's in love ect. but for practice to get better at it so he can have a lot of good sex with the hot women. Practice girls are needed and without them sex with the really hot women would be just so so. Most practice are teen women and most guys who make use of them are teen men.
Not the same thing as ass rape. It's where a woman rapes a guy. It is a myth that men can't be raped by women. There are some horney women who think that it is part of women's equal rights that they can rape men.