A mysterious caller beckons a bikini-clad beauty to the beach, where she's met by an unusual request. She's to pleasure herself on a massive seashell, riding it like the cock it's meant to mimic. Hesitant but intrigued, she mounts the shell, grinding her pussy against its smooth, curved surface. The strange sensation sends waves of pleasure through her, and she soon loses herself in the act, rubbing herself to a squirting orgasm on the beach.