They're shitty stretchy old stretched-out jeans (probably why her "skinny" friend doesn't wear them anymore). I was once about her weight, but 5'9"i  3211  sh and still had some fatlogic. I "fit" into 9/10 jeans, but they were really old with a lot of the stretchy spandex material in them. They were super tight, just fit enough to move around in. She's still easily a size 14/16. That's the size I really was; I thought my jeans had just worn out when they were all ripping at the seams.  I'm embarrassed to admit I ever got that big, but it was almost 9 years ago and I'll be here to occasionally point out their stupid logic that I once suffered from. Mainly because I hadn't bought new clothes in so long, I didn't realize how fat I had gotten. Once I saw I was size 15 at Whalemart, I did something about it. Seems this lardo is doing the exact opposite of what I did (choosing delusion vs. reality), which I see a lot of fats do: try to fit in too small clothing bc they "lost fat but built muscle".