The Worst Smell

A Second Round?

"RACHEL!" she screamed, her voice nasally from pinching her nose. "You couldn't have done that literally anywhere else?!"

Rachel simply smiled in response, appearing proud of her work. She toddled over toward Holly.

"Wait, what are you-"

Without warning, Rachel brought her bottom squishing down onto Holly's lap.

SMRRRRRRSH

The diaper unleashed a vile squishing noise as Rachel's bottom touched down. The mess bubbled and churned as it was compressed between Rachel's butt and her older sister's lap. The light-brown padding morphed and stretched forward toward Rachel's knees and backwards into Holly's lower abdomen, where the backmost end flattened slightly as it found resistance. Holly was wearing a particularly short skirt that day, so she felt the warmth of the Rachel's diaper directly on her bare legs. In addition to the warmth, the sudden movement caused a fresh wave of stink to puff out of the diaper, which assaulted the girls' airways with a renewed sting.

"OH GOD!"

"YEUUGH!"

"Unnnngh..."

Though disgusted with the smell, Holly was more furious than anything. "HEY! What do you think you're doing?! You're gonna get it everywhere!"

The girls who were still sitting now stood up and began backing away from the sisters, no longer able to bear the odor. "Uh, sorry Holly, but that's a little much for us. We'll catch up with you later, okay?"

"No, wait-" Holly held up her hand in protest, but she knew they were right. The smaller girl was a walking stink bomb. Even under normal circumstances, nobody would want to be around that. However, this stench was on a whole other level. She lowered her hand again and looked down, the girl smiling back at her with an innocent look.

"Geez, that reeks!" Holly waved at the smell, but her attempts to get a fresh breath of air were futile. "Just what did you eat yesterday, girl?"

"Heehee!" Rachel closed her eyes and flashed her teeth in a goofy grin.

A moment later, the two heard another loud rumble emanating from Rachel's abdomen. "Ah..." Rachel winced in apparent discomfort and rocked forward on her sister's lap ever so slightly.

There's no way... Holly thought. It has to just be a fart, right?

But Rachel's fear was confirmed as she felt a distinct movement on her thighs. The girl strained once again, somehow producing another bowel movement. The new mush practically poured out of the girl, spreading in all directions and mixing in with the contents that were already present, further expanding the diaper. As she pushed, the runny mudslide forced the diaper farther out toward Rachel's knees. The mess beneath her butt condensed and pressed downward between the small crevice of Holly's thighs, filling the space like an amorphous blob. The back of her diaper now began to mold against Holly's abdomen, causing more of the surface area to make contact as it spread out.