I have a big ass and thighs too.
I look fuckin stupid in most jeans. Pretty much roll Carhart's/Dickie's or moderate fitting shorts/cargo shorts.
I actually prefer wearing shorts most of the time. I look way better in them because a big, strong ass and thighs generally don't look good in jeans unless you have just the right fit and I'm too cheap to shop for custom stuff or buy designer brands lol.