Read manga: Sore Wa Yappari Koi No Sei!?

manga
Summary:

One day, the unlucky Taira dives face-first between the legs of the judo club captain, Kusehara! Kusehara then insists that Taira 'take responsibility' and starts to enact various perverted things to him every day! Exciting and erotic love stories in a school setting!(from Nakama)Ch 5 & 6 already released as Sore mo Yappari Ai no Tame.