searching for a yaoi from mrm

-searching for a yaoi from mrm
-it hasn't been translated yet
-school environment
-uke has a girlfriend (i think)
-uke is a tough guy (i think)

I think they threaten uke with his girlfriend. so he let them tie him up (?) and gang rape in front of his girlfriend who was tied up also. they made her watch as he was gang rape.

after they left. uke end up having sex with his girlfriend

thanks, guys