Where the MC and his friends suspect their classmate is gay and MC is dared to ask him out to find the truth, but instead is rejected and labelled as gay himself by ML, but they become friends and share porn and later get together
http://www.mangago.me/read-manga/i_seriously_can_t_believe_you/?
Thankyou soo muchhh!!! <3 (￣ε(#￣)Σ
Where the MC and his friends suspect their classmate is gay and MC is dared to ask him out to find the truth, but instead is rejected and labelled as gay himself by ML, but they become friends and share porn and later get together