I found a better Homestar Runner story, it's called "Homestar Thunder Thighs" and it appears to be about Homestar eating a lot of junkfood and then getting fat. Then "Boobs" rapes him. I think...
The author, "Sue Mary" has written 19 other stories for a ridiculously wide range of topics spanning Ed, Edd n' Eddy, to Twilight, to Harry Potter, to Arthur, to The Silence of the Lambs to The Epic of Gilgamesh
for goodness sake (he fights a Big Daddy in that one)!