Two curious friends, bored and alone, find solace in exploring each other's bodies. She's his sister's friend, off-limits but oh-so-tempting. They start with innocent touches, hands wandering, hearts racing. She guides his hand to her wetness, gasping as he tentatively pleasures her. He grows hard, and she takes him in her mouth, tasting his excitement. They're lost in their newfound passion, oblivious to the world outside, until a creaking floorboard jolts them back to reality.