There is a woman in OP she is one of the 11 SUPERNOVAS she can make herself appear like a small child and can eat large ammounts without getting fat any who I think that she has a power don't know all I know is that there is some Ar in a good anime any way go to
Onemanga.com/onepiece
http://www.onemanga.com/One_Piece/499/
↑ 2.0 2.1 2.2 One Piece Manga - Chapter 499, A rather small and young looking Bonney saves Zoro by faking his death.