Yes

18 ran as fast as her legs could carry her; clutching her stomach tightly. "Almost there...!" She grunted as she made a few turns until she saw the opened door to the bathroom. "Finally!" She said as she rushed inside the bathroom, pulled down both her pants and panties in unison, then finally sat on the toilet. "Aaah!"

"SPLRTTRTRRTTRRTOOOOOOOOOOOOOOOOOORTTRTR-PLOP-PLOP"

"SCRAAAAAAAAAaaaaaaaaaaaaaAAAAAAAAAAAAAKLLKKLKLKLKL-SPLASH"

"SPLTRTRTRRT-SPLRTTRTRRT-SPLAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARTTRTR"

"PLOP-PLOP-PLOP-PLOP-PLOP-PLOP-PLOP-SPLASH"

Aaaaaah... that's the stuff." 18 moaned loudly in relief after finally relaxing her bowels. Her massive, sloppy dump was being pushed out effortlessly inside the toilet bowl. If it wasn't messy diarrhea, it was VERY soft logs that made a lot of wet splashes. Each turd she kept pushing out disappeared by the now brown colored toilet bowl. "Ooooh... those spicy burritos really did a number on me." 18 said before grabbing some toilet paper to wipe herself. "Good thing Krillen and Marron aren't here, they'ed be gasping for air." She said before she finished wiping her ass. "Damn, I really had to go" 18 said after looking at the monstrous mess she created in the toilet and before flushing it. "FSSSSSSSSSSSSSSSSSSSSHSHSHSHSHSHS" Well, now that my little "emergency" is over, I'm gonna take a nap." 18 said before leaving the bathroom to go to bed after what her stomach had been through.

Ending: Just made it