Tightest pussy tug-of-war contests?

[Edging]

I'm wondering if anyone has links to scenes that somehow involve two girls with two ends of the same object in their pussies, where the challenge is for them to grip it as tightly as possible while trying to pull it out of the other girl's pussy -- in other words, a pussy tightness contest. Perhaps there'd be more than two girls, and the winner of the first contest then competes with the next girl, etc.