I would never tell my parents about any kind of sexual things in my life. Ew.

I would never consider telling then anything within a regular sex life let alone anything BDSM or D/s.

Even if I was more free with my personal life I wouldn't tell them because it would upset them, and unlike some people I find no joy in 'being a rebel' and shoving it in someone's face that I can do it because I am an adult.

Which is actually a reason I got dumped by a guy late last year. He didn't like that I didn't tell my parents about my belly ring because he thought I should tell them, flaunt it and say, "so there."