Kia's Questions (2)

I'm looking for a yaoi manga that starts with a truth or dare game and the guy gets dared to kiss the person behind him who happens to be a guy and so he does a while later he notices he's not attracted to girls anymore so he goes and finds the other guy

I'm looking for a yaoi manga that start with a game of truth or dare in wich one boy gets dared to kiss another boy and he does it a while later he notices that he's no longer attracted to girls so he goes and finds the other guy
I read it a long time ago so I could be wring about some detailed but its something like this please help me find it