wahooo's feed

anyone know a short yaoi where the uke goes to a bar and he sees this pretty "girl" and wants to hook up (i think?) and then later the uke sees the girl( which turns out to be a guy) at a coffee and later the uke and his sister are fighting over this guy. Later its revealed that the seme used to be a loner in school and saw the uke sleeping with this girl in a classroom. The seme liked the uke since highschool