Well I would like to assume that it would be next to impossible to accurately copy jennifer lopez's ass without having an absurd level of access to that ass.
By which, I mean if there really was a way to copy j-lo's ass, then it would require doing things that would most likely be covered in the insurance policy anyhow. If I had an ass that needed insuring, I would be rightfully upset with my insurance provider if it didn't include a clause to protect it in the case of it being copied without my permission (Unless I'm mistaken, I believe the technical term for which is called 'tapping').
There cant be that many people who can take a policy out on their own ass, not because the need for it is scarce, but because it seems like the type of thing that could easily fall prey to insurance fraud. (I mean if you do fall and bust your own ass, how could anyone possibly prove you did it on purpose just for the insurance?)