Is a small waist genetic?

So I’m quite big for my height, I’m like 80lbs overweight which I’m working on. I’ve lost 25lbs so far and I’m still losing woohoo. But one thing I’ve noticed is no matter what size I am, my waist is still really small. My friend who is a lot smaller than me said she wishes she has my waist... is it because of genetics? Bc technically I’m overweight yet I still have a tiny waist... lol
Is a small waist genetic?
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