The siblings huddle together in the dimly lit closet, their bodies pressed close for warmth. Michelle's breath is hot on her brother's neck as she whispers, "We shouldn't... it's wrong." Yet, her hands betray her, snaking down to grip his hard cock through his pants. He groans softly, his hips moving in rhythm with her strokes. He tentatively reaches behind her, cupping her ass, then sliding a hand between her thighs, feeling her heat. She gasps, her pussy clenching as he rubs her through her panties. Their breaths come in ragged pants, their bodies moving together in a dance of forbidden desire.