We had been swimming, went back to her place and did the make out thing, dry humping, and then full undress. I'd eaten her to one or two climaxes, and she was alternately sucking me and letting me tit fuck her. We eventually got to me behind her, humping her crack and fingering her cunt. She was very slippery, and I was gushing pre-cum. I'm sliding back and forth and about the 15th stroke...I'm inside her pussy. We start rocking and humping and she's alternately telling me to fuck her, and not to cum (no protection). I started telling her I'd only do it (not cum in her) if she'd suck me off. She did and I spurted in her mouth, on her tits and ate her out again.