In the dim light of the closet, the siblings' breaths mingle, their hearts pounding in sync. The older sister, Michelle, tentatively reaches out, her small hand wrapping around her brother's thick cock. She strokes him gently, feeling him grow harder in her grasp. He leans into her touch, his hands finding her hips, pulling her closer. Their bodies press together, her breasts rubbing against his chest, her nipples hardening. She can feel his cock throbbing against her belly, and a warmth spreads between her legs.