Bound and forced to watch, you grimace as your partner's lover, a muscular stranger, teases her mercilessly. His massive cock, a stark contrast to yours, slides effortlessly into her eager pussy, making her moan in ecstasy. She taunts you, knowing you're powerless to stop the relentless pounding that brings her to orgasm after orgasm. Your humiliation complete, you're left to clean up her mess, your own unsatisfied erection throbbing in your pants.