Heavy rain suddenly halts all train lines across the capital region... My niece, who attends school along the route, arrives at my place drenched. I lend her a dress shirt, but it's too big—the gaps constantly reveal glimpses of her breasts and panties. In this state, she presses her chest against me. Is she teasing me on purpose, or is it unconscious? Innocently, she keeps rubbing against me provocatively. My restraint shatters instantly, and my erect cock plunges deep inside her. This forbidden, illicit relationship—something I can never tell anyone—only fuels my uncontrollable excitement.