I demand that this thread be renamed because:
1. The racy title misleads you to think something foul is afoot with females and basses. (that's why you clicked here isn't it you perv!

)
2. The video actually contains no basses.
3. These gymnasts are getting their feet all over the guitars, and horribly warping the necks with their weight (guitar abuse!!!).
Just kidding!
But I'd really be surprised if the necks on those guitars weren't in the very least in need of a setup.