Girls' sparkly velvet jumpsuit

I bought two of these for my girls- long slender tall 4 year old got the size 5 and short curvy 12 year old got the size 14. I should have gone up another size for the 4 year old to a six, but it fits *just* right now so might buy another. She loves it and chooses to wear it often. It’s a bit long for my shorter older girl so I would say it is true to size. We size up in pants for her because she’s curvy on bottom.