So I figured out SD12 needed some new clothes...long story but anyway, DH ordered some new things.
SD had told me that she would like to go a size up but that leggings in a size up were too big in her waist. I said, well, you need your legs to be covered and you will grow into them. I had also found out she has been wearing a size 7/8!!! From last year. So we went with 12s.
They arrived yesterday, she tried them on and said, they were too loose around the waist. I told her to come over and let's check since they looked PERFECT. Turns out they were an exact fit - the waist was NOT loose, but fitted exactly. Had a little talk with her about how clothes are supposed to fit - i.e. not 'dig in' to your waist but sit on it. "Oh!" she says. Then she tried on other style and got it. Told her she'd been wearing such small sizes she was not used to things fitting well.
MY thinking: BM buys her clothes, in smaller sizes, or maybe bigger size. But when SD12 tries them on she does not actually check the fit and SD just says, because she's been wearing sizes almost 2x too small, they are too loose. And because BM just lets SDs do what they want, then so be it.
AGH. At least SD has two pairs of leggings that fit right. And this reminds me I have to update the sizes on the order DH was going to place for after xmas. I think she'll be in teen sizes by the summer.
Thank goodness SD doesn't like shirts too tight! She's wearing appropriate clothing and likes to be covered. Otherwise we'd have issues.