So after expressing a bit of outrage, I calmed down enough to realize that there is ALSO a Forever 21+. Their sizes start at size XL, which corresponds to size 11/12. Now, I realize that some of you are tag-conscious and don't want to wear something that says "XL". My solution? Cut off the tag.
Check out what I found on Forever 21+:
Tip: Forever 21 has free shipping on U.S. orders over $50. Check out their fabulous accessories of you come up a little short of reaching that goal. Also, check out their site often because things sell out quickly!