In the throes of a hormone-fueled summer, a inexperienced step-sister can't resist her stepbrother's chiseled physique and massive cock. She sneaks into his room one night, watching as he strokes his length, her pussy dripping with anticipation. Unable to control her urges, she mounts him, impaling herself on his virgin dick. They fuck silently, intensely, their bodies slapping together as they finally mark each other's first time with a taboo, forbidden passion.