On the short side: Guy gets stuck in the world of My Little Pony. Ponies are anthro, the guy actually knows about the show (which makes for some awkward situations), and loses his humanity. (Bet you can't guess what he turns into!.... Oh wait, the title...)

On the longer side: Yes, I've started writing a story about someone (who is almost a self-insert) getting transported to the land of magical ponies. They're anthro because there will be sex and I like boobies! This person becomes a dragon because dragons are freaking cool! And this story is going to forever be tagged "Mature" because there will be language, sex, severe violence, and questions of an ethical and moral variety.

THIS STORY WILL NOT BE FOR THE FAINT OF HEART!

Also a quick note that real-life will probably make it so updates will be slow, so apologies in advance.