Try this!
Not because I think you need to improve your butt --- but because it is 'fairly' easy; start slow with less exaggerated movements if you need. It's only 10 minutes. There is no bouncing or jumping.
And the best part, first, is that it works out your body's walking machine; your butt.
But most importantly and second, it is working a group of fairly large muscles which lets your body know you want to get going again, without a lot of energy expended.
You've got this! Time is your friend in this case.