Sorry, not remotely an AIBU, but I'm totally posting here for traffic.
My dd1 has just turned 10 but is already very developed. She has been in crop tops for a couple of years but I'm starting to think that she should be in a proper bra now. I'd make a guess that she would already be a b cup, but she's also very slim so she'd be a tiny back size.
Can anyone point me in the right direction of where is a good place to go for a first Bra?