You make her like it, and she cums.

You **** your hard, thick cock into Jenna's pussy from behind. Your girlfriend's hot cunt is so wet and tight. You hold onto her firm round ass, and she moans as you hard fuck her. "Oooh, yes! Yes! Yes!" Jessie watches wide-eyed as you fuck her sister, loving every second of it, every thrust, pinching her own nipple, and rubbing her little teen pussy through her dress.

Then Jenna throws her head back, arching her back, and tossing her long dark hair. You feel her pussy constrict around your cock, flooding with her wet, juicy orgasm. She moans and writhes and bucks, cumming hard. It's so good, you cum too, hard, bursting inside her, filling her hot sweet pussy with your seed. Jenna rises up off her hands, panting and sweating, and kisses you, as you slowly slide out of her. Jessie is staring at her sister's freshly fucked pussy dripping with your cum.

(Mark +1 xp for making her cum)