The siblings, driven by curiosity and hormones, sneak into the closet for a quick, forbidden session. The brother, his heart pounding, unzips his pants, his hard cock springing out. His sister, her eyes wide with a mix of fear and excitement, tentatively takes it in her hand, stroking it gently. He groans, his hips bucking slightly. She looks up at him, her lips parted, and takes him into her mouth, her inexperience evident but her enthusiasm clear. He lasts only a few minutes before pulling out, his hot cum spraying onto her eager tongue. They clean up quickly, their secret safe, but the taste of each other lingers, a promise of more to come.