The senior who is in love with his junior who has a girlfriend gathers the courage to sneakily pleasure himself right next to her while she's asleep during a group retreat; the tension and sense of transgression make it the peak of excitement. The junior notices the nocturnal activity and realizes it's problematic, but his erection doesn't subside. Unable to endure the senior's fierce advances, he eventually accepts it, leading to an intense, passionate encounter in the top position! They both struggle to suppress their moans in the extreme pleasure!