Big Top, Big Bottom; New Story by praedatorius
 

While most of this story is weight gain and body inflation (yes, I have both), there is some TG in here as well. Just thought I'd warn you.
Its about a woman who looks for her boyfriend in a circus full of women with fetished figures. When she does find him, though, he'll have a lot of explaining to do.

http://praedatorius.deviantart.com/#/d4e9vou