I know this device.
I watched you build it, two lengths of 6 x 4 timber mortised together to form an X frame. You had me lay on it so you were sure that the steel ring bolts were in the right position, about level with my ankles on the two lower struts and high above my wrists on the upper.
You could, I realised, pull my body very taut if you wished, almost rack like. You told me to get up, and went to work smoothing all the edges, leaving nothing to scratch or hurt me.
The ropes were black and thick, one end spliced into a stainless steel quick release shackle the other wrapped around a steel securing post, this was on the upper struts, on the lower was only the rings.
Watching you, I found myself getting wet but to no avail, you simply finished the work to your satisfaction and took it upstairs, locking it in the room that I never enter without you, the play room.
But now, still within the agreed 24 hours it seemed I was to renew our acquaintance. I had woken to the smell of fresh coffee, you had released my wrists and removed the blindfold, I reached for my dressing gown but you took it from me, I was to remain naked.
We sat at the table, me naked you wearing only jeans, drinking coffee, eating fresh rolls with Brie. We said little both our minds on what was to happen next I guess. I finished my roll, drank the last of the coffee and looked at you.
"Stand up."
I stood.
"Stand in the middle of the room."
I obeyed, facing me you slid the blindfold over my eyes.
Then I felt straps tighten around my ankles, and then my wrists, you pulled my arms behind me and I heard the lock click, your hands encircled my biceps, you kissed me between the shoulder blades.
"Time for the play room."
You led me upstairs, I heard you unlock the door and you guided me in, stopping me, you pushed me gently back. I felt cool, smooth wood against my back, I knew what this was, even though the last time felt it I was clothed and now I'm naked, I know what it is.