mouthing.

[maneater]

My 14 week old lab x has started to mouth my chi's. When she was a *smaller* puppy they played really really nice but now that she is bigger sometimes the play get a bit rough and she will mouth the chi's. Some times the chi's will ask for it. They are not always like this towards eachother. They can sleep together and eat together and all that kind of stuff and they do play normally together also. She has not drawn blood or punctured the skin or anything but i don't want this behavour to continue. We have put her on her leash and will use the leash to correct her behavour and then redirect her with one of her chew toys. and have her teathered to us during the day for about 30 min at a time, mainly to get her used to the baby. She does get exercised and has lots of play time. She is a very good dog otherwise and i am also worried that this mouthig behavour will transfer to play with the kids. Any ideas will help.