In a secret corner of the Underground, Toriel and Asriel's clandestine affair unfolds in an endless loop of carnal desire. Toriel, her royal dignity replaced by primal lust, hikes up her dress and impales herself on Asriel's throbbing cock, facing away from him. Asriel's hands dig into her ample flesh, guiding her movements as she bounces on his lap, her tight pussy stretching to accommodate his impressive length. Their bodies slap together, the sound of their union echoing through the empty throne room, as Toriel's moans of pleasure mingle with Asriel's grunts of exertion.