Our new rottweiler pup (10 weeks) spends most of her time when she is not in her crate playing with our 18 month old dog. They display typical behaviour as far as I can see, tug of war and they nip and bite each other and Dexter is remarkably patient with her. This has the advantage of very little opportunity for rough play with the humans (3 smallish boys and me) and she is not nipping/chewing at us at all.
So my question is two fold - is this ok to let them get on with it - she is very rough with Dexter but I am assuming this is all part of her natural socialisation?
Secondly, on occasion when she needs to return to her crate and I pick her up she is a bit growly with me (I don't do this when they are right in the middle of rough play) as I guess she wants to carry on the game. My response to this is just to gently shush her and gently stroke her to calm her. Is this the right thing to do (it seems to work) or should I be telling her NO?
Sorry if they seem obvious but whilst I am quite expereinced with dogs I have only ever had 2 adult dogs in the house and want to make sure I get things right.