This clip starts out with BJ laying still, with her wrists cuffed and feet trapped in stocks. She is stirred to the sensation of having her socked feet tickled by our dastardly resident tickler, Marco! She fights and wiggles her feet away but is only successful in inching the stocks away from her perpetrator. He then sits on her legs so that she is unable to move away and for further punishment he removes the socks, intensifying the tickling sensations to the max.
In Joker-like fashion all BJ can do is laugh uncontrollably, which is exactly what our perp wants!