My college gf woke me up in the middle of the night, got on top of me, and rode me for like half an hour while rubbing her clit, then made me hit it from behind so she could cum. She was sexual but never that forward. I asked her what brought that on and it took a while but she eventually confessed that she’d had a dream about being gangraped in an alley by a bunch of Mexicans, and woke up so horny she needed to be fucked.