i have a daddy kink and idk how to tell my bf about it

ok first of all i have a decent relationship w my actual dad lol this isn’t that. however, i like the idea of a dominant figure during sex and i like feeling helpless and praised. i like calling my s/o daddy during sex but im not into a 24/7 act-like-my-dad thing and i don’t want my boyfriend to think that’s what i want. my bf kinda has a dad bod too and i REALLY don’t want him thinking it’s some unresolved trauma shit, i just like the dominant aspect and the roleplay aspect of it all. any tips on how to bring this up with him?