Prior to chastity, we were into bdsm play. It started with me as the Dom, then switching roles, and eventually her the Domme. A client of her business is/was a professional Domme before emigrating to America and became friendly with my wife. When she showed the business side of her home (dungeon) my wife asked a few questions to better understand the business for expense reporting and also out of curiosity. The next quarter some more questions led to an offer to show her how things were done and after she had my wife comfortable with various implements, had her bring me for a visit.
I got a tour of her home and then a tour of her basement while my wife was suppose to review some files. Imagine my surprise when my wife walked in dress as a real Domme and ordered me to strip. I was tied to a naked to a cross and the Pro Domme gave my wife lessons on flogging, canning, and whipping. The Domme would show her a technique and have my wife repeat it on me. Some adjustments were made with stance, delivery method, and placement and by the end of the night I was sobbing like a baby.
A week later, we were building a dungeon in the old wine room in the basement previously sealed off prior to us buying the house. It took digging out the dirt floor (leveling), rough plumbing a bathroom, pouring a concrete floor, and framing out the walls. Slowly we insulated, soundproofed, and finished the space and I started building the furniture. There are several nights a year when she still takes me from a defiant man to a sobbing baby and I do enjoy every moment when I look back.