DASS-506 I was played to dress up as a girl, and my best friend found out that I was a boy. Ririka Kito

Riku was worried about being forced to dress up as a girl at the school festival. His best friend Koume couldn't bear to see that, so she cheered him up. One day, when Koume saw Riku dressed up as a girl, her pent-up emotions exploded, and she ended up sucking Riku's penis.