Vicky's and Girl's stuff may not fit, but Stephanie Petite's does! Aiko comes with a A3 to SP CR2, so you can use SP's clothing on her. And she takes unimesh textures, too.

It's a nice figure, and I'm happy to have her, but not being much into toons, I probably won't buy anything for her. I kind of wish some of the A3 clothes were available for Steph or Vicky; they're really cute!