In the quiet of the house, a brother and sister, both curious and horny, find themselves alone for the afternoon. They start with innocent touches, but soon, their lust takes over. He watches her strip, her amateur body on full display, as she tentatively touches herself. She can't help but stare at his growing bulge, and when he finally reveals his hard cock, she's eager to touch it. They explore each other's bodies, their inexperience making every sensation new and thrilling.