I had found these at The Erotic Mind-Control Story Archive, and I figuered they count as a type of body expansion.
http://www.asstr.org/~mcstories/Literally/index.html (Second half of chapter two)
http://www.asstr.org/~mcstories/DigDoug/index.html
http://www.asstr.org/~mcstories/UmItsATypo/index.html
Does anyone know of any other examples of "cumflation"?