Hi there, I'm looking for a specific yaoi I read several years ago. It was pretty hardcore so if you're sensitive, I think you should avoid this thread.

The protagonist was the uke who fell in love with the seme. The seme admitted he was a sadist but the uke was okay with it because he loved him. But when they went to the seme's room there was another guy there with a mask on. The seme said he didn't like training his own masochists/slaves but the uke became reluctant. Regardless, the seme left the uke to the other guy and came back a while later. In the end, they had a threesome.

I've tried searching using the categories, but I haven't been able to find it. Any help would be appreciated.

Is it chapter 5 from Three and a Half?

Yes, I think you're right! Thank you so much for helping Aerith!