Your dog is trying to show dominance over the lab. I don't think it is sexual. Besides, getting him some won't keep him from humping. My dogs mated and had puppies last spring, and my male will still try to mount any of the other dogs and hump them. He does it to show he's "in charge".
I don't know what to tell you about the children and all. I hope you figure out how to handle that situation. Maybe some YT'ers can give you advice on that.
Kim |