Also, if you still prefer scenes to be available in english to please a wider audience, maybe you could let the girl dub the scene when english is not their mother language. Example, when you shoot Carolina Abril, she could dub the scene in spanish. Dubbing is not ideal (not original version for the viewer and more work for you), but maybe it's still better than scene only in english. Dubbing could also be inverted... shoot in their mother language and dub an english version... maybe it would allow a better english sometime.