Sex secrets he doesn't want to hear: your guy wants you to open up in bed. But these four toxic topics are off-limits. (his point of view).

* We guys love it when a woman clues us in to what makes her squirm (in a good way) between the sheets. Still, there are a few details better kept reader wraps. As eager as we are to hear about your passion past and present, some subjects will send our egos plummeting. Hey, we're not proud of being so touchy. But for the sake of your (mid our) lust life, put a lid on these thorny mattress matters.

your get-naked number

When the guy you're with asks you how many men you've slept with, keep your lips zipped. If he thinks the member is too high, he'll be intimidated. If it sounds too low, he'll wonder if you're lying--or worse, are a prude. Yeah, we know it's a double standard. But as much as we want a woman who has in-the-sack skill, we can't stand the idea that you've been with a ton of other dudes. "When I risked my current girl how many guys she'd been with, she just smiled and gave me the perfect answer: 'Does it really matter now that I'm with you?'" recalls Ben *, 23.

your gyno issues

Cramps, PMS, yeast infections--yep, guys are totally aware of all that can go wrong with female plumbing. And while we're sympathetic to your gender's nightmarish health problems, we'd be grateful if you spared us the gory details. "I was hot for this one girl, but then she started confiding in me about all of her urinary-tract infections," says Josh, 31. "It's not that I didn't care, but I ...