W-why...*looks around* th-that's just gross. I'm sorry, but I know how my own flow is here and that would just be nasty. I don't even give hubby a blow job while I'm on my period, and I definitly don't expect him to eat me out during my monthly!
I am a woman and I've never dated another woman (though I do find many attractive) but I wouldn't go down on one if I were dating her during that time of the month. I've also never asked any of my male partners to do that. Once a guy online told me it was his fetish though.
Why is "HER" in caps? Not all people who have periods are women. Not all women have periods.
That said, I would never have give oral sex if my partner was bleeding, nor would I let a partner give me oral if I was bleeding.