Yaoi where one of the guys gets caught jacking off? He either sees him see him jacking off...

http://www.mangago.zone/read-manga/seito_kaichou_ni_chuukoku/ somewhere in that manga

http://www.mangago.zone/read-manga/by_my_side/

http://www.mangago.zone/read-manga/toshigoro_no_otokonoko_to_are/

Thnxs 4 de info. (=・ω・=)

Oh, I had already read this but thanks btw (brings back memories)

muchas gracias