That's funny, but the truth is that she doesn't really want to know if you've slept with more women than Wilt Chamberlain, and neither do you. If you're a man who attracts the sexual attention of desirable women, a high body count isn't going to substantially increase her estimation of your value. It may add to her insecurity, if that's your intention, but it could also backfire. Let's face it: a man who's slept with 10,000 women has probably never said "no" in his life, and has probably banged broads who'd make your skin crawl.
Even if you're taking home a different woman every Saturday night, unless you really suck in bed, or you woke up and chewed your arm off to get away, a good portion of the women you sleep with will want a repeat performance, if not a relationship. So, even with a rotation, how many nights a week are you willing to devote to women who aren't willing to just come over, go to bed, and go away? Really?
Any guy whose life consists of going to clubs, every night of the week, and taking home a different girl, has something deeply pathological going on. I've known such guys, but I didn't really like them.
This thread stems from a general insecurity among men, that he's only slept with a dozen women, and that she's slept with a dozen squared men. It's the insecurity that's the problem, not the actual number. You aren't going to impress her, either way; so, why even dignify the question with a sincere response?