Redhawk Caldera i'm going off the rails.

The abrupt cessation of Tiger's laughter elicited a toothy grin from Finley, which only grew when the girl cried out her name furiously.  Unfortunately, Fin's triumph was quite short-lived, for no sooner had she felt it than Tiger was making an unexpected and abrupt stop.  Were it not for the fact that Finley was already slowing down, she would most certainly have gone flying over her sister's spine.  As it was, Fin instead just slammed right into Tiger's rump, successfully losing both her balance and her grip on her sister's tail as she bounced backwards and fell onto the ground with a loud outcry of "FUCK!!"