Hidden away in their shared room, the siblings succumb to their taboo longing. He strokes his engorged cock, while she toys with her clit, their eyes locked on each other. As their pleasure builds, she leans in, taking his length into her mouth, her tongue swirling around his sensitive head. He responds by burying his face between her legs, his tongue delving into her wet folds. They switch places, her riding him reverse cowgirl, his hands gripping her hips as he slams into her. Their bodies tense, and they come together, his cum mixing with her juices as they collapse in a panting, satisfied heap.