Ookami Shounen wa Uso o Tsukanai (Arakata)

Riichi's been in love with his childhood friend, Sakuma, since middle school. In order to conceal his feelings while sating his desires at least a little bit, Riichi's made a habit of excessively teasing Sakuma, hugging him for no reason, and taunting him with his "irresistibly beautiful face".. Until one day, when he ends up taking things a bit too far by dressing himself up in sailor uniform while in Sakuma's room. Sakuma becomes aroused and Riichi services him, but now that he's had a taste of what it feels like, Riichi finds himself torn between his dignity as a man and his desire to attract Sakuma to him by continuing to cross-dress.