Stepbro dominates. Pins stepsis over toilet seat. Dress bunched at waist. Hands clamp her hips. Cock drives into pussy from behind. She slumps forward. Lips parted. Eyes half-shut. Tiles cold under knees. Grip tightens. Thrusts relentless. Ass jiggles hard. Face presses toilet rim. Nails claw white porcelain. Switches angle. Deeper now. Body tenses. Barely holds on. Stepbro owns every inch.