The Cock Ninja's prowess is put to the test when his blonde step sis challenges him to a masturbation duel. Smirking, she strokes her clit and plunges her fingers into her wet pussy, her big tits bouncing with each thrust. The Cock Ninja, unruffled, jerks his massive cock in response, their mutual desire palpable. The tension builds as they edge each other, their moans filling the room. Finally, she can't take it anymore and begs him to fuck her. He obliges, pounding into her with long, deep strokes until she screams in orgasm, her pussy overflowing with his cum.