DD (13, nearly 14) has bought a dress for an upcoming school dance and I just don't know how to react to it. It's red, short and tight and she loves it. She's a curvy girl and she looks like a glamour model in it, all big boobs, legs and long hair. DH was
when he saw her in it and I've tried to suggest that she wears some sort of wrap or jacket over the top to tone it down. But, I don't know anything about fashion apparently! 
Little dresses for teens are the norm around here and DD is already self-conscious about her figure, she worries that she's not skinny like some girls her age. So do I let it go? She'll be fine at this school event, but outside school, she'd definitely get attention in this outfit because she looks SO much older than 13.
Can/should middle-aged Mum's give fashion advice or should we just let them decide for themselves?