What would this exercise do to my butt?

If I did this everyday (not counting weekends)
What would this exercise do to my butt?
then this once a week (should I do it more?)
What would this exercise do to my butt?

Would it make my butt bigger or smaller?

I'll be doing other exercises then these (that's why I thought I'd do the on fire once a week, and I'd work other stuff other days)
What would this exercise do to my butt?
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