Patreon Prompt 393

Prompt: (Mettaton (Undertale) Butt Expansion and Farting) https://www.deviantart.com/blarthyminion/art/Hyper-Ass-Mettaton-Fart-Alt-891728262

   Mettaton’s mind went wild with possibilities as he learned more about the human world’s entertainment industry. The eccentric showman found even his impeccable dance moves and robotic body to be lacking when it came to competing. At a loss, he took several months discussing with Alphys a way to make him stand out from the rest. While they eventually came to a solution it was far from an expected one.

   Making his grand debut on a stage bathed in flashing lights, Mettaton took a flamboyant pose to welcome the numerous viewers watching his stream. With everything in place, he made a grand show of his silver limbs flailing around to the beat of the music. As he reached the apex of the first verse, that was when he activated the new feature of his body.

   A shudder through Mettaton’s lower half signaled the beginning of his backside starting to swell. Though his leather pants managed to keep up with his widening hips, they did little to obscure his deep ass crack. Shaking around his butt as it reached elephant-like proportions, he waited until he hit the final part of the dance number to reveal his final ace in the hole.

   To the sound of a loud PFFRAAAPPT, Mettaton’s backside began to let out thick clouds of pink fumes. So enamored with his own sense of brilliance, he failed to notice how his built-in fog machine had the unintended effect of making it appear that he was billowing out clouds of flatulence. Continuing to burst out prolonged bursts of gas he shuffled back and forth to work through the rest of the song. While the performance was far from what he had anticipated, the results spoke for themselves as he watched his viewership numbers climb to staggering heights. Signing off with a slap to his massive rear and one last puff of fumes, he thanks his legion of new fans for coming to his big bottom’s debut.