Collaborative sex stories let us write the plot together

(Medical Experiments, continued by RandomShadfan...)

Jenny continues to push herself and down your dick, gripping both of your tits for support. The rough boob-play is painful, but it’s got a hint of pleasure behind it.

You can’t help but start to thrust back into the blonde’s tight cunt. Jenny bends down and presses her tits against your new ones. She presses her mouth to yours and parts your lips with her tongue, exploring your mouth. She moans deeply into the kiss, still bouncing up and down your cock.

It’s getting harder and harder to keep yourself from cumming, and you know that you’re going to explode any moment now.