Rainbow Dash loves peeing her snow pants. (And the skintight black pants she has on underneath) She loves the warm release and plus it means she can stay outside and continue to have fun rather than go inside for bathroom breaks. It means she will be in wet snow pants for a while but she doesn't mind. (Nor does Fluttershy, who has wet herself a lot and she feels more comfortable with it knowing Rainbow does it for fun)

The last of my Holidays Unwrapped pee edits. Happy Hearth's Warming to anyone who likes these.