Katie makes sure she gets hers first.

Katie grabs Kelly's hair with one hand and yanks her away from you. "Not yet, you hot little whore. John's gonna cum in me before he gets anywhere near your tight little pussy. And I know how tight it is; you could barely fit my strap-on when we first started."

Kelly blushes but smiles devilishly, biting at Katie. "I can't wait to find out if he fucks as good as you do, baby." Your head is dizzy with the thought that your cousin and this new, beautiful step-sister of yours have been fucking, literally FUCKING for weeks now.

Your cousin brings you back to the moment by leaning in and kissing you again, then twisting around on your lap, turning away from you, and pushing her butt against your stomach as she takes your cock between her warm pussy lips. She grabs your hands and pulls them to her perky tits as she starts to bounce again. She moans, pushing her hands into her hair and across her face as she writhes on your throbbing member.

Kelly, still wearing her boyshorts, climbs on top of you, face to face with Katie. She presses her tits against the backs of your hands, so your fingers are pinned between both girls' perky breasts. She pushes her tongue violently into Katie's mouth, and both girls moan loudly. Katie almost screams in ecstasy as she fucks herself with your hard dick, saying loudly, "Cum, cum in me, cum in my hot little cunt baby, please!"

Katie's pleading pushes you over the edge, and you explode inside of her, releasing hot seed into your cousin's young snatch. She feels your body convulse and she bounces feverishly, squeezing your cock with her pussy, trying to pull every drop of cum into her. She finally relaxes, laying her back against your chest, still holding Kelly against herself, kissing her tenderly.

"Fuck, John, you were amazing."