Ahi also does mouthing. I don't see nothing wrong with it because she only does it when we are playing. I like when she puts her mouth over my hand/foot and pretends to bite down.(if that makes sense) Her mouth will kind of vibrate. Like how I bite down on babies(skin lol) cheeks. I also have her chase my hand or feet under blankets. She hops all over like a bunny rabbit and it's cute!