Elena Koshka, my stepsister, and I share a taboo connection. Today, she needs my car, and she's more than willing to trade for it. She teases me, her big tits and round ass on full display as she begs. I agree, and she wastes no time, pushing me onto the bed and straddling me. She grinds her pussy against my hardening cock, then takes it out, stroking it before sliding it into her wet hole. She rides me, her tits bouncing, her pussy clenching around my cock. I slap her ass, feeling her tighten around me. I grab her hair, pulling her down as I thrust up, fucking her hard. She moans, her body shaking as she cums, her pussy dripping with our mixed juices. I shoot my load deep inside her, claiming her as ours, before wiping my cock on her ass and sending her on her way, car keys in hand.