Oh no way. I am a size 14 and she is bigger than me in both girth and height. And 14 is only my pants size. I can do a Lg or XL depending on the top. If she is wearing a 3x she is bigger than a 16.Honestly I think she’s probably about a 16. She’s not wearing that size in some of her shorts, but she should. She squeezes into a smaller size and looks like a busted can of biscuits.