I need help finding out an old manga I read but can’t remember

So the plot is.. the middle age man (uke) hides his sexuality and the younger seme; ukes coworker wants to do him just once to prove that the uke is gay. He is very vocal about it to one of his coworker. The they do it while drunk i think. And then the seme slowly realizes that he has fallen in love but then the uke kind of rejects him cuz he still isn’t comfortable on opening up. Please help me find this manga of anyone knows the title