Calling him daddy I need help.

My bf is creeped out by the fact that girls call their man daddy. But I'm into dirty talk so much with him. And sometimes I get the urge to call him daddy during sex and have to keep my mouth shut idk what to do. Idk why I do either, I have a great relationship with my father so it would be weird. I guess I just like submitting completely and it'd give him more dominance over me. Is there anything else I could say? What can I do? Please help