A dominant hand grips a vulnerable wrist, tying it tightly to a cold metal pipe. The other hand follows suit, leaving a willing captive at the mercy of CBT pleasures. A firm grip encircles an ankle, securing it to the pipe's base, spreading trembling thighs wide. A skilled, cruel touch explores every inch, pinching, twisting, and teasing sensitive flesh until moans echo through the empty room, begging for more.