Mistress, a leather-clad dominatrix, has her submissive tied to a St. Andrew's cross, her ass cheeks spread wide. The sub's breath hitches as the Mistress trails a crop down her spine, then snaps it against her ass, leaving a satisfying red mark. The Mistress then retrieves a large, realistic dildo, lubing it up while the sub watches, eyes wide with anticipation and fear. The Mistress presses the dildo against the sub's virgin asshole, pushing slowly but firmly until it pops inside. The sub gasps, her body tensing as the Mistress begins to fuck her, hard and rough, with the dildo, all while whipping her ass, leaving no part of her untouched and unmarked.