The air is thick with tension and the scent of their shared arousal. Michelle's breath comes in short gasps, her nipples hard against her brother's chest. She can feel his heart racing, matching her own. His hands, big and strong, grip her hips, pulling her against him. She can feel his hardness, straining against his pants, pressing into her belly. Their eyes meet, and in that moment, they both know they're about to cross a line that can never be uncrossed. Yet, they can't stop. The need is too great, the temptation too sweet. They're about to give in, to surrender to the taboo lust that's been growing between them.