Yeah... a bunch of old guys writing about menstruation. Bet some of them get off on that...
By the way, does the Watchtower still write material wherein all the responsibility regarding sexual appropriateness is still heaped on the girls/women? I can't exactly remember from the days (around a half a year ago) when I was attending meetings... In my congregation, whenever there was a lesson about this topic, it was mostly gender-neutral, I think, such as "marriage spouses can't have oral sex."