True Love Makes You Happy.

Usagi-san and Misaki have been 'roommates' for a while. Misaki takes care of the chores and his school work while Usagi-san-- Well he writes his books. Usagi-san likes to get his 'inspiration' for his books from Misaki, that doesn't always turn out so well. Misaki refuses to say her loves Usagi-san, even though he knows it is true, yet he finds himself slowly finding ways to show Usagi-san how much he cares and love him. It takes a little convincing from Usagi-san, but Misaki proves he loves him.

This has a little bit of mature content so please read at your own risk. I do not own Junjou romantica nor do I own the picture used as the cover, I give all the credit to the creator of the picture and the creator of the anime.