ROYD-018 Momoe Kotoriyu's sweaty love affair with an older sister with plump nipples who will do anything you ask, as long as it's under the futon.

I want to touch the girl's body! - A desire that every man has. - But it won't happen without her... - Things will get weird if this continues! - Driven into a corner, I felt ashamed and consulted my sister. - Then, she accepted and said, ``It's embarrassing so I'll just lie under the futon...''! - But even kissing and touching her breasts. - Naturally, I couldn't resist it and inserted it a little forcefully! - My sister is confused, twisting her body and feeling all sweaty! - Taking this as an opportunity, each other's sense of ethics collapses inside the futon!