For  elcid. Mist always makes a great blob.

EDIT {12/25/17}: And now for the story, mainly written by me but with some changes made by Cid.

One time, Mist was told that she needed to gain weight. How Mist was meant to handle such an absurd chore, she didn't know. Rolf was of course assigned to help Mist gain weight and be her feeder. As there was no target weight specified, Rolf tried to make Mist gain as much weight as possible. During this, Mist became a massive truly blob. Once that happened, Rolf was told that Mist was at a good enough weight and that there was no more need to continuously stuff her. And after that, Rolf's next assignment was to brainstorm and try out ways to make Mist's new body useful for the whole army...

ElCid's posting can be found here.