In the steamy jacuzzi, her stepsister's moans echo, drawing him in. She's playing with a dildo, her body glistening, her breath ragged. He approaches, cowgirl style, her ass pressing against him. He reaches around, replacing the toy with his cock, her tight pussy enveloping him. She grinds against him, her moans intensifying as he massages her clit. Their bodies slip and slide in the water, their rhythm increasing, until she screams, her orgasm shaking them both. He pulls out, his cock throbbing, and she leans back, taking him into her mouth, sucking until he creams in her throat.