Because there's no such thing? Or at least in that time period.

[a beat]

Actually, a woman's virginity was held in much higher regard back then. It was essentially a symbol of her status. If she was still a virgin, she was much more likely to be able to marry up as oppose to down. No one cared if a guy was a virgin.

But that goes back to the whole "turning women into property thing" that most feminists don't like.