My wife and decided to try a D/s relationship about 10 years ago. We were getting used to each other and some of the spark was gone, but our D/s lifestyle brought it roaring back. Outside of sex I was always somewhat dominant and that hasn't changed, but when it comes to sex I take over. We talked about it before and wrote up an agreement together - things I will never do, things she will always submit to, things that get negotiated at a later time. We are both very adventurous within our totally committed marriage - so no one else ever gets invited in. Writing the contract was very enlightening in terms of revealing our desires and fantasies. We learned things about each other that we never would have guessed. Turned out, we both had fantasies of bondage and discipline, so B&D became a routine part of our sex life. We were very strict about our D/s roles in the beginning, but we've gotten a little sloppy - lazy I guess - over the years. We used to start every day with her on the floor on her elbows and knees after her bath. I caressed her all over, inspecting her to make sure she had done a good job with the razor, etc. If I felt any stubble she got a short spanking. Every morning I chose her bra (if I allowed her to wear one) and panties. I put her on her knees and made her take my cock in her mouth before we left the house for the day. After 10 years these things no longer happen every day. She still gets spankings, still gets tied to the bed, the porch rail, etc while I use her, but I haven't take the whip to her in months and months. Neither one of us is fond of that any more.
Oh well, this started out as a question and it turned into an essay. So - anyone else into it?