It wasn't a gif and didn't jiggle, either.
Frankly, the depiction of any fantasy chick with big jiggly boobs hanging out is dumb. Flat chested girls can get away with bras made out of flimsy wire, but any chick with a rack bigger than a C cup is going to be wearing something a bit more substantial. You can't fight or run with boobs flopping in your face - it hurts!