Switch, big, nicely plump.
Sometimes dangerous, too. She has a good deal of natural bulk, and while untrained, she can use it at times.
The only real surprise for any that get too close would be her hair, tail and hooftufts. They are all made up of hundreds of hair like strands that can move from her thoughts. And it's strong enough to trap an average human.
WIP otherwise.
Defective_Triad