Oh dear, really sad to read this. I have to cinch my belt tight or the trousers slid right off.
Butt, sorry . . . but I have been dealing with this for such a long time, I seem to have overcome the genetic disadvantage to some degree.
And I too, have a standing desk, because having little to no butt, does make sitting a chore.
I sincerely hope you're wrong, Dew. Otherwise butt implants, here I come. Sigh. 😊👍