Teenage siblings Mike and Sophia find themselves alone, bored, and horny. Mike's massive cock tents his shorts, drawing Sophia's hungry gaze. She kneels, taking his length deep into her mouth, gagging slightly. Mike, a natural, guides her head, teaching her to relax her throat. Sophia climbs onto his lap, riding him reverse cowgirl, her tight pussy stretching around his thick cock. They switch to doggystyle, Mike pounding her relentlessly, before Sophia hops back on, this time facing him in cowgirl, their eyes locked in taboo lust.