Good question and I imaging you'll get a lot of diverse answers. Obviously I can only speak for myself...but in our case the D/s or BDSM stays strictly in the bedroom or, on rare occassions, my apartment when we are alone. In the bedroom, I'm the boss and she's the slut. We both like it that way and have incredible sex because of it. There are situations like, making her go to work with a chastity belt on, or go out for dinner with a butt plug lodged in place that are fun...but outside of our relationship...no one would ever suspect what goes on behind closed doors.
I know there are those who consider it a "lifestyle" and thats fine if it works for them. It doesn't for me.
It actually serves as a source of amusement for us that those who know us would probably think of me as being a little "pussy whipped". But once the door shuts she and I both know who is doing the whipping. We often exchange a little glance or wink when, in the presence of friends, someone makes a reference to "whips and chains", "handcuffs", or shaved pussys. Its just another little bond that brings us closer together
There's my response...I'm curious to see some of the others.