Chaste nun, Sister Mary, finds solace in the darkest of places - the confessional. Alone, she lets her fingers wander to her taboo pleasures, stroking her big, round ass and plunging them into her tight, forbidden hole. Her mind races with images of the priest's massive cock, longing to feel it stretch her virgin ass in the most sinful of ways. The creaking of the confessional door snaps her back to reality, as a penitent enters, unaware of her secret, shameful ritual.