Trap Testing Gone Wrong (Patreon)

Harley belched fruitlessly against the torrential flow of fattening sludge that dumped itself down her throat.  When she'd been told to test the trap in advance of Batman's arrival, she'd missed the part where she was supposed to get someone off the street to test it on...  now, she was paying the price.

Every mouthful of goo crammed down her throat made her gut a little fatter, her hips jiggling and wobbling as they surged out inch by inch.  Her heavy breasts slipped further and further away from each other, forced apart by their weight and the roundness of the gut that they lay atop.

'Aw gee, this ain't gonna look good when Mista J gets back...'  Harley lamented, a rogue splurt of sludge rocketing out around the tube as her overfilled gut fought back.  'Well, s'pose I should be grateful that my outfit's holdin up, right..?'

The creaking of her wardrobe not longer after made her regret even daring to jinx herself...