When I met my master, he was my first and I told him not to expect me to call him Sir or Master or any of that crap. Then one day while chatting I said yes Sir only half sarcastically and soon I was calling him Master or Sir all of the time. Then one day he said he felt he was much older than me at times and suggested that maybe we really had a Daddy - little girl relationship. At one time I would have been offended by this, but it wasn't meant as a put down. I tried it and it just felt right. He has been Daddy ever since.