Horny and eager, my stepsister teases me with her perfect, natural tits before dropping to her knees, her full lips parting to take my throbbing cock deep into her warm, wet mouth. She sloppily sucks, her tongue swirling and flicking, driving me wild. I can feel her enthusiasm as she takes me to the back of her throat, gagging slightly but never breaking rhythm. As my cock pulses, she looks up at me, eyes watering, inviting me to cum in her mouth. I oblige, grunting as I shoot my load, filling her mouth. She swallows every drop, licking her lips, a satisfied smile playing on her face.