I think that large women (like myself) should understand that spandex is a privelege, not a right.
After a certain size, you just shouldn't be wearing spandex...
Also, if you have to go through a process where you jump up and down and wiggle to pull up your pants, or lay down to button them, they are too small! Seriously, buy a bigger size!
If your pants give you a muffin top or you can't bend over without your crack hanging out, again they are too small!
If you can see individual rolls and/or cellulite through your clothes, they are too small.
Just because it comes in your size doesn't mean you should wear it. That sexy nurse costume? Not so sexy when it's on a 300lb frame...just saying.
Also, please stop wearing booty shorts in public. There is nothing attractive about rolls and cellulite drooping everywhere.
You should love your body regardless of what it looks like. Love, however, does not equate near nudity. If you are too big and you're wearing yoga pants and a sports bra, you're leaving nothing to the imagination. And yes, the children around you can see your camel toe. They can see the full definition of your butt crack. They can practically see what you look like naked when you wear those too tight, too small, too stretchy materials.
Oh, and one last thought from this fat woman...
Just because you can stretch a medium onto your 2X frame does not mean it's your size and it definitely doesn't mean you should wear it.