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Exercise is really good for you.

And in this case, it’s really, really good for us. This well-endowed model’s name is Joey Fisher and in this clip, she demonstrates grace under pressure during a photo shoot for British men’s magazine Zoo.

RELATED: This TV reporter decided to wear her boobs to work.

She’s somehow able to gracefully perform an awe-inspiring set of jumping jacks while putting that tiny bikini top under enormous pressure.

Now that’s athleticism.