Young and curious, the teen retreats to his room for a private wanking session, his cock aching with desire. He strokes his length, his breath hitching as he imagines the tight, wet pussy he craves. Unbeknownst to him, his sister, also in the throes of hormonal turmoil, is watching through the crack in the door. She bites her lip, her own hand sliding into her panties, fingers rubbing her clit as she watches her brother's cock grow harder. Just as he's about to explode, she pushes the door open, her eyes meeting his, her face flushed with shared desire.