I want to start using pacis

Hi everyone! So I'm 19 and my boyfriend is 32. I recently found out about pacis and they just look sooooo soothing. I want to start using them but I don't know how to tell my boyfriend? I call him daddy but I dont think its a legit little/big relationship and since he is already 13 years older than me I don't want him to feel weird about it since I'm already so much younger. any advice?? :)