Looking for a yaoi...

It's a yaoi manga about a man that wants to be a house-husband. He and his girlfriend break up and he goes to stay at a friend's house but it ends up being the friend's brother's home. The brother lets him stay there. Soon after he starts staying there, he finds out that the brother writes and draws a hentai manga for a living (and later he finds out that the main character is based on him [mc]).