If a girl is having her period during sex, get a plate and let it drip onto the plate. Then take a piece of dentalfloss, dip it in the blood on the plate, shove the dentalfloss in your dick hole, and let the woman take the other end of the dentalfloss out of your asshole.
Last night I was fucking my woman, when she had her period. I knew just what to do. FRUIT PUNCH!