Well it's sort of hard to describe...but I'm looking for a yaoi in which two guys are forced (by some person or group) to have sex with each other. I don't know if there is such a yaoi, but kind of the idea I'm looking for can be found in chapter 4 of Burai-an

You should try versus x lovers. Their families kinda forces them to compete in sex. Not sure if it's what you're looking for though.

how about KARESHI GLAMOROUS at the end of the story the brothers force the their lover to see and there kiss each other.
how about this one too.OMAE NO TORIKO it about a dude whoom gets gang rape by some strangers that his lover got the dude who was part of that loves the dude who get rape

Now and forever, i been your most loyal servant
😉 Squee!!!! :0

Try reading Boku no Kawaii Hito dakara The two lovers are forced by a friend