3. “Blue balls” happen, occasionally.
Many of us have been taught to believe that we have to get a guy off once we start to hook up with him, otherwise his balls will shrivel up and die. But this just isn’t true. First of all, a guy has to be close to having an orgasm and be aroused for a long period of time before that can even happen. And if “blue balls” does happen? “All a guy has to do is masturbate for them to go away; it’s not a medically dangerous condition,” says Kerner. “Blue balls is actually a pretty rare condition. It’s probably more common in young men who have relationships where they have ‘rubbing sex’ with women with their clothes on, or ‘frottage,’” says Dr. Nelson. Basically, if you dry-hump him for two hours, he’ll probably get blue balls. But if you’re just making out and don’t want it to go further, there’s nothing to feel guilty about. And more importantly, you should never feel like the “threat” of blue balls means you’re obligated to get a guy off. If you want to, go for it, but if not, you shouldn’t feel you owe him anything. He can very easily fix the problem by taking matters into his own hands, if necessary.
4. Bigger doesn’t always mean better.
On average, penises are about 3 inches long when limp and 5 to 6 inches when hard. The majority of guys fall into this range, although most want theirs to be bigger, of course. Ironically, “sex is more of a problem if a penis is too big,” says Kerner. A guy with a small one can make up for it with his movements and oral skills, but a guy who’s hung like a horse may make sex painful. If your guy has a little too much of a good thing, Kerner suggests that you “use lubrication and have sex in positions where you can control the thrusting.”
5. Guys dribble before they shoot.
The last bit of info that all girls need to be aware of is that for guys, sex is like basketball: They almost always dribble before they shoot. And that dribble, i.e. precum (the stuff that comes out before guys full-on ejaculate) can carry STDs and get you preggers, just like the real thing. So pulling out is not a great method of contraception. In other words, if you’re worried about pregnancy or STDs, you should definitely use a condom.
Tell us: Has your partner ever had erectile problems? How did you deal with it?
BettyConfidential’s Sexpert Amber Madison is a sex educator and author of Hooking Up: A Girl’s All-Out Guide to Sex and Sexuality, and Talking Sex With Your Kids, which was released in March.