Patreon Prompt 306 (Patreon)

Prompt: Gojo’s task of preparing a cosplay for Marin becomes that much harder when her butt begins to rapidly expand.

   With a convention only a few days away, Gojo was doing his best to get Marin’s costume ready in time. As he went about his room getting the last few parts finished up, Marin sat on his bed and dug her spoon into a cup of gelato. The pleased hums she let out as she ate were a sign that whatever the pop up stand was putting in the treat was doing its job. Though she was uncertain of the exact ingredients, they were good enough for her to empty out the cup in time to try out her finished cosplay.

   Stripping down to her undergarments, Marin tried to squeeze into the fabric bodysuit. Struggling getting the cloth past her hips, she called over Gojo to lend a hand. Getting on his knees, Gojo obliged and managed to gradually work the fabric past her waistline. However, everything started to fall apart the moment he noticed a small hole form in the back of the outfit to reveal part of Marin’s butt cheek.

   Gojo’s fear that he had somehow messed up the costume were replaced with regular terror as she watched Marin’s ass grow before his very eyes. The most he could do was stare in stunned silence as her butt cheeks proceeded to tear straight through the fabric. Dumbfounded by the sight of the swelling mounds, he got beaned in the head as Marin’s panties popped off and hit him in the face.

   Still reeling from the destruction of Marin’s undergarments, Gojo found himself in the danger zone as her bottom grew to be the size of a bean bag chair. The added weight gradually forced Marin down until she came crashing onto Gojo’s face. Becoming buried beneath Marin’s giant rear, Gojo managed to hear a muffled voice call out.

   “I’m so sorry!” Marin shouted as she balanced atop her bed-sized butt cheeks. “I should really pay more attention what’s in my food from now on.”