Gaining

I wouldn't mind a bit more of an ass.

I can relate, I have a bubble butt as well. I do enjoy have the extra padding back there to compliment my growing belly.
I wear brief style underwear, which I find more comfortable the boxer style, plus they show off a fat rear a lot better.

Fatcutie; Thank you!

Most of my weight is in my belly and chest. I really wish I had a bigger, fatter butt as my pants would fit better (a size 54) and it would be a lot more comfortable sitting on benches, etc. However as much as I would love a bubble butt, flying would probably become a problem because right now I just barely fit in a coach seat with a seat belt extender and if my butt were bigger it probably would be very uncomfortable. Although I am amazed how fat, large hip women can squeeze into the smallest seats, not only on a plane but in theaters as well.

I don't know why, but I would loooooove to have a big fat squishy butt.

Haha, I've been told I have a bubble-butt even before I had gained much. Basically this...
I like that it has got bigger but I quite enjoy seeing it in far fatter versions on girls too

I have a shelf butt does that count?