A late-night encounter between siblings turns into a forbidden fuck fest. The brother, lost in his own world, strokes his throbbing cock, when his sister, unable to resist the temptation, joins him. She sucks him off, his cock glistening with her saliva, before straddling him, her tight pussy enveloping his length. They fuck in silence, the only sounds their labored breaths and the wet slap of skin on skin. He cums inside her, filling her with his hot seed, as she collapses onto his chest, panting.