Whatever roleplay a person wants to do is their business, but make sure the other person is on board, or just keep it in your head. An escort that I was with blurted out, "F*** me, Daddy!" No explanation, no buildup, nothing to let me know her mind was in that place. Threw me off my stride a little bit. More disconcerting was that she was probably enough older than me for those roles to be reversed.