As you age, butt may flatten and lose shape due to lower amounts of flat in the buttocks and loss of collagen in the skin.
My butt isn't flat because flat butts are horrible. Fat makes your butt round, and most people prefer this.
my butt
Be like Nicki Minaj and get a butt implant.
Not really if you work out your butt while doing it.
because that is sick...and just flat out weird
a flat butt
GROSS MAN!!! # it feels good
I can ensure you that that is not normal.
you pick your butt
Not an accurate answer but: it is said that having sex in the doggy style position lifts the butt.
Genetics controls the answer, there is always a chance to inherit anything.
butt