Cheating the Cycle of Life- A Padded Pony Collab

Apple Bloom was cursing her sister for havign sent her to a sleepover to Diamond Tiara's place, under her breath, as embarassment and sheer humliation made her blush and look down at the bathtub's water, as Diamond Tiara smirked at the bathtub's side

"How'd you like your bath, Bloom-bloom? Want a rubber ducky?" Diamond Tiara said with a snicker "Oh, right, I almost forgot, the water's too high for a baby. But you're a big baby, so who cares."

The following laughter sounded a lot alike to one of a stereotypical villain, grating Apple Bloom to no end.

"W-what's so funny? I'm not a baby!" Apple Bloom said, looking up with a glare towards Diamond Tiara.

"Well, explain that then." Diamond Tiara pointed at the discarded and messed pull-up that limply lied next to the bathroom's door, the strong smell of poop emanating from it disperded by the open window. "Big fillies don't mess the bed, only little babies do."

Apple Bloom tired to glare strongly, lowering her ears and pouting.

"Well, and you wet the bed, tell me how's that different."

Diamond Tiara flinched and blushed softly, but regained composre immediately, as she made a swingign movement while walking towards Apple Bloom's used nightly protection, grabbing it with her left hoof, a small amount of what was kept inside spilling out, and putting it on her back.

"I know a lot of fillies and colts that still wet the bed at my age, and, besides, I do it rarely," she said, before walkign to the wate bin of the bathroom, opening it up with her right front hoof. "But, pooping in bed? I've never heard of any filly, or colt for that matter, doing it after they are potty trained."

Apple Bloom blushed, but kept her glare up.

"That isn't true!" She protested.

Diamond Tiara made a clickling negatory sound, as she took some toilet paper to clean up after the small spill.

"I don't know anypony that goes to bed clean and wakes up with a bed smelling of number two. In fact, let's make a bet."

Apple Bloom dropped the glare, wary interest in what was going to be proposed ovetaking her.

"Tell me, what do you bet?"

"I bet that, if you can find somepony in this town, besides little foals and the occasional elder, I'll go to school wearing a wet pull-up, I'll pay you ten bits and I will not mock you for it. If you lose..." Diamond Tiara smirked "You'll go to school in a stroller, wearing a diaper used both ways plus a pacifer that you'll keep on suckling for all morning. Do you accept?"

Apple Bloom looked at her rival, then at the water, then back at Diamond Tiara. She could have refused to accept, knowing that the chances of failing were high, but, considered that the possible reward was Diamond not  speaking about her nightly issue, and considered that she could see her humiliated in front of everypony in the class for once...

Apple Bloom nodded.

"Deal!"