Pussy-Polished Chain
A novel twist on the old “making her walk a rope with lots of knots” game. I can imagine him saying as he swings his whip: “Get to work, you lazy girl! That rusty chain isn’t gonna polish itself!”
From Device Bondage.
Elsewhere on Bondage Blog:
There’s a good chance that sooner or later as she progresses down the chain, she will get pinched by a couple of adjacent links.
And pinched where it really hurts a girl!