Luna had already woken up. She was wearing her diaper due to some intestinal problems, but she didn't mind since they felt comfortable. It didn't take long before she met her older sister, Celestia, trot up to her. She was also wearing her diaper. What for, though? "Ah, sister," greeted Luna, "I must say, you look nice in that nappy." "Thank you kindly," said Celestia. While Luna's diaper was light blue, Celestia's was more pink. "So, what are you up to here?" Luna asked. "Oh, you know exactly why I'm here," her sister replied with a smirk. A second later, Celestia raised her tail. *Prrrrt* A small, quick noise escaped into the seat of Celestia's diaper. "Sister," said Luna, "Did you just...?" "Oh, I sure did," answered Celestia, "I've waited for this opportunity." At that moment, the night princess smiled. "Oh, it's THAT kind of game, is it?" she smirked, and she farted back. *Pfffrrrrt~* "Is that really the best you can do?" teased Celestia, raising her flank up high and ripping another gas bomb. *PBLBLRRRPT!* Luna fanned her muzzle, and giggled. "Oh, I'm just getting started," she chimed, and wiggled her padded butt back and forth, releasing another stinker of her own. *Pblaarrrrt~* Both seem to enjoy this little game, but their diapers already stank of their toots. "Not very lady-like, is it?" chuckled Celestia. "No, it certainly isn't," her younger sister answered, "But at least it's fun." "Oh yeah," agreed Celestia, "It's a real BLAST." *Poot, Blrrrpt, Psshhh* Three farts, each one smellier than the last, erupted from her flank making her diaper puff and ripple. "That's enough, sister," laughed Luna, "You're gonna make a mess in your diaper." "I haven't yet," said Celestia, "but THAT came close. Whew!" "Really?" said Luna, "I wouldn't mind." She then lifted one of her hind legs. "See if you can keep up, sis!" she teased, and out puffed a squeaky fart. *Pffweeeeet~* Celestia just chuckled. "That was all but a warm up, Luna," she told her sister. "I thought as much," said Luna. At that moment, they both raised their padded flanks up in the air, readying themselves for the big one. "Hope you're ready for this one, Luna," teased Celestia, "Oh I sure am," said Luna, excited, "This just gets better." Their stomachs started gurgling, signaling a much larger blast. There was no coming back from this one... "Ready..." said Celestia, "Aim..." Luna continued, "Fire!" they both ended.
“Oh yes,” cooed Celestia, “Sweet relief…” Luna, on the other hoof, stood shocked silent. In their little game, she messed her diaper a good deal. “Uh oh,” giggled Celestia, “Did someone make a stinky in their diaper?” “Yes,” confessed a sheepish Luna, “I did.” They shrugged it off with a hoof shake. “That was pretty fun,” said Celestia, smiling. “It sure was,” Agreed Luna. The older alicorn fanned her nose as it made contact with the smell. “Don’t worry,” she said, “I’ll change your diaper.” Luna smilled at that response. “Thanks, sis. I’d appreciate that."
