The stepsis, feigning innocence, tucks her stepbrother into bed, her heart pounding with forbidden lust. She can't help but notice the growing tent in his pants. "What do we have here?" she purrs, her voice echoing in the dimly lit room. He squirms, trying to hide his excitement, but she's already caught the scent of his desire. "Let's make a game of it," she whispers, her eyes gleaming with kinky intent, "You keep your hands to yourself, and I'll... well, let's just say I'll make sure you're tucked in properly."