hehe
I'm in a Dom/Sub relationship. In a sense its sort of 24/7, but not "really". We don't always have kinky sex, sometimes its vanilla.

Its kinda hard to explain... its just that these are the roles we've always assumed naturally within our relationship (obviously to a lesser degree) years before we even saw eachother naked (we were friends for 10 yrs before we started dating) so when we started exploring BDSM, the Dom/Sub roles came very naturally to both of us.

We like Master and Slave play. I love having my hair pulled, recieving asphyxiation, biting (receiving an giving) being spanked (hard), and having candle wax drip on me while blindfolded and bound. I also love it when he talks dirty

As for underlying causes? I am not submissive by nature, I'm actually a control freak by nature. I've always secretely wanted to relinquish control to someone, in some way, and bf is the only person I've ever trusted with any type of reigns.

Please don't mistake any of this for "I am a zombie and obey him 24/7"... That couldn't be further from the truth. We are equals, but like I said, its not easy to explain the dynamics.