Welcome aboard,
Your path is a good one. If you feel the urge and irresistible need to let D/s slip out of the bedroom you are on your way to a great crazy adventure.
My first thing to advise you as a Dom to a newer one… always try to be a step ahead. Which means that you need to learn how your sub works. As in war the rules of engagement are flexible, time to hunt in her romance novels. Look for the more crumpled ones, where the pages are folded again and again. Women tend to read books in non linear ways. They just skip straigh to the passages they like and come back to them all the time. You might be screwed if she is a E-Reader type. If so, you will have more reading to do. I would recommend you to take a shortcut. A fantastic author for BDSM DOM/sub novels is Cherise Sinclair.
Good hunt Sir,
Cheers,
Mr.A