Thanks everyone for your input......I took them both to a free puppy class this morning at petco. The trainer(who uses a lot of "Dog Whisperer" tecniques)said for the most part, they are playing but I need to keep watch on ellie mae and not let her on top of Max,even though he said Max was the one trying to be dominant(which is so funny cos he is only half her weight). It is hard to watch because it looks like she is hurting him and even when he yelps, she doesnt let go till I force her mouth open and release him.

Max was kept separated from the rest of the litter because of his size which was a mistake. I need to establish control over their play-fighting so they can be together. It is sad to have them apart most of the time.