Alice never talked with anyone else about the extra room in their house at the end of the hallway. It wasn't anything that really came up in conversation. If anyone asked, she simply said they used it as a storage room and didn't open the door. No one besides her and her husband Mike ever went in, and she had a special reason not to go in if she didn't need to.
Mike was a stockbroker and made very good money. They had no children, but a few years into his career, he bought them... Well, Alice really thought of it as a mansion. She didn't come from poverty, but even so, this was still the largest house she had ever lived in. It officially had four bedrooms. The master suite with its spacious bathroom and walk-in closet was certainly enough for both of them. They set one bedroom up as Alice's craft room and office. The third was a guest room for company. Mike had a workshop in their garage that he used for tinkering on some weekends.
That just left one room. "The room," Alice and Mike called it.
Mike was a dominant man, and Alice was naturally submissive. Both had a kinky streak, and as Mike was naturally the leader, he had a plan. As they were moving in, he shared it with her.
It was quite simple, from Alice's perspective. There was just one rule: anytime Alice was in that room - for any reason at all - she had to be completely nude from her ankles (he allowed her to wear socks or slippers if the floor was cold) to the top of her head.
On the wall opposite the door, there was a single window, which had blinds that were never opened. There was a bright, but nondescript light fixture in the middle of the ceiling with a switch next to the door. There were a couple of electrical outlets here and there. Other than that, and the four walls, the room had come with nothing else remarkable.
Mike outfitted the room with a few special items. There was a bed in the corner - really just a box spring, mattress and fitted satin sheet. It wasn't often that their sallies into that room didn't end with Alice on the bed on her back and Mike on top of her, fucking her into incoherence. Alice bought a few sheets for it in different colors and changed them out every time they had a session, picking a new color (of course, she changed the bed completely bare).
The item in the room that Alice feared the most was the punishment chair. Alice didn't have much of a rebellious streak in her, but if she got mouthy, Mike would just say, "That's enough, Alice. Go to the room and wait for your punishment!" Alice's blood would suddenly run cold and she would almost automatically meekly reply, "Yes, sir." Of course, going into the room required her to disrobe first, so she would go to their bedroom to do so. She would put on a robe to make the trip down the hall, dropping it off her shoulders and leaving it on the floor outside the door.
Inside, the punishment chair waited. It was a plain, wooden chair, but Mike had augmented it. He cut a section of an office rolling chair mat the size of the seat and glued it on upside-down. The mat had little spike-like protuberances that were meant originally to anchor it to a carpet, but it made for a torturous surface to sit on. In front of the chair was a short footstool.
Whenever she was ordered to sit in the chair she was to put her feet on the stool and her hands behind her head. Lifting her feet to the stool increased the weight on her bottom and the spikes dug into her bottom flesh, tenderizing it in advance for the paddle or the strap Mike would shortly use on her. When her punishment was particularly harsh, he would sometimes follow it up with more chair time while she was still crying. Sitting on that seat with her bottom red and burning after a spanking never failed to redouble her sobs and fill her eyes anew with hot tears.
If Mike spanked her over his knee, he would usually sit on the edge of the bed and beckon her over his knee. But he also procured a spanking bench. It had a large flat padded top for her torso to lay on, and a smaller, wider padded platform below it for her to kneel on. There were rings at the corners to bind her, but Mike didn't use them, as Alice never needed to be restrained (it was a bit of a point of pride for her). He would order her on the bench with her knees as far apart as she could manage. It never failed to make her face turn bright red as she could almost feel his burning gaze on her most private place.