Yaoi

Yaoi (Japanese: やおい) is a term for fiction that shows homosexual male relationships but is usually created by men and women (called Fudanshi/Fujoshi, from the Japanese 腐女子, literally "rotten girl" and 腐男子, "rotten boy"). Most yaoi fans are male and female.

A yaoi image

There are also works of fiction that show lesbian relationships. This is called "yuri". It is mostly created by men. Some yaoi are based off of real events but most are from the artist's imagination. One example of yaoi anime is Sekaiichi hatsukoi, a good example of a great yaoi manga is "Obnoxious Hero-kun".