Is it normal to want my partner as my biological parent?

My partner and I both enjoy the "daddy" kink. I call him daddy whenever we're in bed and we talked about how great it would be if I was actually born as his daughter and that he was my real father. I've never had sexual thoughts about my own dad, just with my boyfriend whom I call daddy. I often fantasize about my partner being my dad because there's just something sexy about being dominated by him and how he'd be so loving towards me because I'm his daughter. So, is this normal?