The follow up

Everything went wrong.
Because if course it did.

"Help, my new penis is a gigantic monster!" You yell, still attached to your giant throbbing member as it smashes through yet another unfortunate pony's home. "That one was also your fault!"

Twilight was galloping along side, shooting magic bolts at the gigantic creature that was once your one-eyed gopher. "Anon, I can fix this! You just gotta hold it still!"

You were cool as a cucumber, as your mammoth gherkin rumbled down the road to its next target. "Hold still? Hold still!? I don't even know how I'm hanging on!"

Your name is Anon and you're apparently not allowed to have nice things.