I have a girlfriend who i love very much, Sexualy we are both very compatible but in recent months things have been....well different, Every time she is a few days away from her period she becomes very sexualy aggressive, I get home from work and she practicaly r**es me ripping my clothes off biting my nipples spanking me and holding me down as she grinds against me, She even talks very dirty saying things like "i'm gonna fuck you so hard you slut!", Although i was shocked at first i've grown to like this side of her even when she fucks me realy very hard with her stap on while pulling my hair, But after her period she returns to a very caring and gentle lover, The problem i have is understanding her change at this time, I've never encountered this is any other woman before so i was wondering if any other woman out there feels like this close to her period and why??, Personaly when near my own period i just become horny as do other women i know and i even feel horny during it too as i dont get cramps and cranky, So is my girlfriend unique or a freak?? i'll still love her no matter what but i'd love to know.