You fuck her ass, she doesn't pass out, and she cums.

Jenna plants her feet beside you, braces her hands on your shoulders, and slowly grinds her fine asscheeks all over your throbbing cock, getting herself wet with your precum. Then she slides her ass down, riding your thick cock up her tight asshole. Your hot young girlfriend bounces up and down in your lap, taking your shaft deep, her soft little tits rubbing in your face. Jenna holds onto your shoulders, you hold onto her tight, tiny little ass, and she moans as she rides you. "Oooh, yes! Yes! Yes!"

Little Jessie watches the two of you fuck, loving every second of it, every thrust, wishing that was her taking your cock up her ass.

Then Jenna throws her head back, arching her back. You feel her tight asshole clench around your cock as her pussy squirts out 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 guts with your seed. Jenna kisses you, sweaty, panting, and slowly slides off you. Jessie looks so turned on, staring at her sister's freshly fucked asshole dripping with your cum.

(Mark +1 xp for making her cum: 1 XP)