I am trying to understand the concept of hooking up and how common it is in college today. I realize there is lots of drinking and sexual activity in college, but I guess I didn’t realize to what extent. I was never one to hook up. I preferred relationships and have only been with a few women. I never lived at college, but my girlfriend did for 4 yrs. She has had "sex" with 3 guys before me. But her definition of sex is different than mine. She only considers vaginal intercourse sex. I guess I'm old fashioned, but I would consider oral sex and anal sex to be sex, and any hand usage/penetration to qualify as sexual activity, too (though more of a grey area, I guess). She considers that stuff "hooking up" or "fooling around". She said she hooked up about 12-15 times in college, sometimes with friends of hers, sometimes with people she met a few hours before. So I was a little surprised by what she told me. So I guess I have a couple of questions: Should I consider sexual activity other than vaginal intercourse as sex? Do women feel a lot of pressure from guys, their friends, and their social groups to hook up? How common is this behavior among college women today? Is 12-15 "hook-ups" (ie. oral sex, anal sex, hand jobs, fingering) over a 4 yr period a high/low/normal amount for college women? (Should I be concerned that my girlfriend can’t even recall the exact amount?) Am I being naive to think that most women (in college or otherwise) don't have this many experiences by their mid-twenties? I don’t mean to be sexist and focus only on women’s behavior, because I am sure men do it just as often. I guess I am just trying to understand my girlfriend’s concept of hooking up and whether her behavior is typical of most college women.