
If your bitch has not been spayed then, when she is in season, he
may still try to and apparently ties can happen, although of course she will not become pregant. If he does behave like that I would say you would still have to separate them for the duration of her season as it would be very wearing for the bitch to tolerate that behaviour for that long. If she has been spayed though I doubt there would be any problems, some dogs do like to play in a very "physical" fashion though but, providing there are not big size differences, she should have no difficulty in putting him in his place if she finds this tedious.