Looking for a specific BL

Ok so it’s been a few years that i’ve read this BL and i’m now trying to reread it. I’m not really sure on the plot but there was a special episode where a guy went to a sort of sex club to do it with a guy. He came often and ended spraying some sort of strong perfume on the bottoms wrist, so he could confirm who he was doing the nasty with. In this “club” the customers weren’t allowed to see the other persons face.