From Blumanga.com:
Misaki is suddenly having some unexpected and odd problems. What started as a need for some college entrance exam tutoring has somehow led him to being romanced by a suave older man who also happens to be his big brothers best friend. Confused by all of his brand new emotions, Misaki struggles to deal with his suddenly very odd life. And if that wasnt enough, his suitor, Usami, has plenty of issues of his own. A man-child who decorates his room in giant teddy bears and toys, Usami is a famous novelist who also writes steamy boys love novels on the side. When Misaki cracks open one of these books and reads sentences like Misaki licks every inch of Usamis hot body &well, lets just say that all hell breaks loose. And if one couple isnt enough for you, Junjo Romantica focuses on three different sets of lovers, each with their own compelling stories.