In the quiet confines of their shared bedroom, a sister's late-night cravings lead her to her brother's side. She gently traces the outline of his cock through his boxers, feeling it stir and harden at her touch. With a wicked smile, she pulls out his throbbing member and begins to stroke it, her expert hands working it with a rhythm that has him moaning softly. She leans in, her breath hot on his ear as she whispers, 'I've always wondered what it would feel like to have you inside me, big brother.'