A possessed mascot costume force feeds people fries. Buck Dewey lies bloated as Mr Fryman is force-fed.
Steven the Sword-Fighter (S01E16)
Amethyst swallows a magical cloud which inflates her for the rest of the episode.
Future Vision (S01E39)
Steven imagines the possibility of any danger coming towards him, and one of these fears is being stung by wasps.
Super Watermelon Island (S03E01)
Malachite briefly inflates before she defuses after Alexandrite shoots her with a light arrow from Opal's bow.
Adventures in Light Distortion (S04E12)
One of Steven's attempts to revert the Gems to their normal shape causes Pearl to inflate into a ball shape.
I Am My Mom (S04E25)
Steven creates a bubble while trapped inside the Topazes' fusion, which causes them to briefly expand before they split apart.
Clash of the Gluttons (Steven Universe: The Big Donut Special, 2016)
While the Big Donut has a blow-out sale, Steven and Amethyst compete in a donut-eating contest with each other. Both of them wind up stuffed after eating all of the donuts with the contest ending in a tie until Greg shows up with Steven's favorite "Father-and-Son Special" to share with him. (Erroneously, Steven's gem is missing in this comic.)