Penny Pax, the gym's most tempting regular, finds herself in a private session with her instructor, who's been fantasizing about her tits and tight body. As he guides her through exercises, his cock grows painfully hard. Penny notices, a wicked grin spreading across her face. She seductively deepthroats his thick cock, her big tits smothering it as she sucks. The instructor, unable to control himself, bends Penny over the weight bench, her ass high in the air. He grabs her hips, his fingers digging into her flesh as he slams into her pussy, making it gape around his big cock. Penny's moans fill the gym as he fucks her hard, her tits swinging wildly.