Weeeeellll, One word of advice to you. You have to understand how these things work. There is the base body, which defines how the sim lookes nude. For whatever reason the developers set it up with separate meshes for outfits instead of 'draping' them over the models. Guess it was too complex to use for real time play.
So, the point is, the 'nude' models define how the sim looks in the shower, how she looks in clothes depends on the clothes mesh. So if your not careful you can have the increadible size changing breasts!