Honto no Bokura

From Exiled Rebels Scans: Sueoka is popular and friendly to all of his classmates, but he hates being around people. Hiding during lunch in the bathroom, Sueoka ends up hearing two of his male classmates having sex! Stuck in the bathroom, Sueoka has no choice but to endure through the entire thing. However, he is somehow caught!! "If you don't want me to tell anyone, suck me off." Blackmailed by the quiet Oohashi, what will be Sueoka's decision? Hide his true self or let it be revealed to the world?