One piece swim with chest "coverage" for petite 13 year old
So DD2 is a very, very petite 13 year old. She probably passes as a 10 year old easily. She can fit in the Costco Speedo girls' one piece size 12 swimsuits, which I hear run very small. The Costco size 12 Speedo one pieces are a little big, but fits gets by b/c it's a one piece. However, the nipple coverage isn't great for the size 12 and under. Most swimsuits that would fit her don't seem to have nipple coverage. She is self conscious about that. Are there any one piece swimsuits that could fit someone who is probably equivalent to a 10 year old height, but has lining or more coverage in the chest area? She doesn't actually have much of a chest, but the breast buds might show through a very standard one piece.
Thanks for any advice!