I was sneaking a peek at my stepmom's ample bosom as she was cleaning the tub when my stepbrother walked in. I knew he was a fan of her generous curves and I decided to use this to my advantage. I urged him to coerce her into giving him a handjob, all while I was secretly watching.She initially hesitated, but his pleading and my encouragement finally convinced her. She unzipped his pants and took out his impressive member, which was already throbbing with anticipation. I could see her eyes widen in awe as she realized the size of his manhood. She began to stroke it, her hands working in rhythm with her mouth as she took him deep into her throat.I could see her gagging slightly, but she didn't stop. She continued to pleasure him, her hands moving faster and faster until he reached his climax. The sight of her big, natural tits covered in his cum was a sight to behold. It was a wild, uninhibited session that left us both breathless and satisfied.