I have to make two cakes for a B-day. I was hoping to save some time by icing my cake with a chocoate buttercream that uses hot fudge topping under my fondant. The pirate ship is taking the chocolate buttercream. BUT my girls want a Princess cake (I know, this sounds a bit like a romance novel). If I do the crumb layer in chocolate icing and them put a pink MMF over the buttercream - will it look like princess had Exlax?

I always love your help!!!

The icing needs to be fairly thin, and the fondant not so thin. The icing won't squish around under the fondant, and the fondant won't be transparent.