Fuyushirazu no Koi

Even though Chihiro is Shuto's cousin, his neighbor, and a guy, Shuto has had feelings for him for five years. Shuto knows nothing good could come from these feelings. That doesn't stop Shuto from kissing his cousin...and touching himself. When Chihiro catches Shuto kissing him, Shuto soon realize his unrequited love might still have hope.

(Source: Futekiya)