there's some interesting information
here click
The site's a bit, hmm, political, but interesting nonetheless.
Quote:For many women sex during their period is necessary and beneficial. Many women have found experiencing orgasm(s) during their menstrual period relieves menstrual cramps. This is because the uterine contractions of orgasm helps expel the menstrual fluid and relieves some of the muscular tension in the muscles of the uterus, caused by the hormone prostaglandin. Many of these women rely on masturbation to produce their orgasm(s), feeling they are or should be unattractive to their partner at this time. Others just are not in the mood for partner sex, in an active role, but know the benefits of orgasm. Some women experience a marked increase in their libido during their menstrual period and as a result crave partner sex. While some postpone sex until after their period others aggressively seek out a partner. This increased sex drive is the result of hormonal changes and perhaps because a woman knows she is not pregnant, and is much less likely to become pregnant during her period. A sexual free for all. Some men and women are attracted to menstrual blood and desire their partner the most when they are menstruating, a little vampire fetish. For these reasons sex and menstruation must coexist.
Vampire fetish?
Whoa, baby!
