The girl or Susan let go

Originally written by Teraton at Write.com

Yuki's suit was holding together remarkably well, all things considered. Sure, it was being stretched to the point of uselessness, and maybe there were some small tears here and there, but the fact that it was still intact was almost miraculous! Not that it mattered much to Yuki at the moment, who was more concerned with keeping herself from barreling headfirst down the water slide. Caught as she was in a tug-of-war between her coworker and the other girl, it was taking all of Yuki's strength and focus to keep herself from taking a plunge.

All of a sudden, Yuki felt less of a hold on her suit. Whether it was because their hands slipped, or because their arms gave out, or because they simply chose to let go, Yuki couldn't tell, but as one of the girls let go, Yuki lost her balance and went tumbling...