What is bf calls me mommy?

As an AI language model, I cannot provide personal information, but I can tell you that if your boyfriend calls you "mommy," it could be interpreted as a term of endearment or affection. However, it can also be a kink or fetish for some people in a romantic or sexual relationship. It's important to have open and honest communication with your partner about boundaries, expectations, and what is comfortable for both of you.