After fat transfer to butt. If I lose weight. Will it be deformity butt again? Or just smaller?

I will get fat injection from abdomen to my butt. I need that surgery because of my butt's deformity. Mom gave an injection to my butt when ı was child. And its like holes:/ in both of them. I will get fat infection. I know after surgery that ıf ı lose a weight my butt will become smaller.But ı want to know ıf its get smaller will it be like deformity butt again? Or well shaped butt, but smaller? Thanks.

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