Skirts give the illusion of allowing easy access to the woman: all one has to do is slide a hand under the hem and then follow her inner thigh up till you can’t go higher. But tight shorts show visually exactly where her crotch is located.

That’s helpful here. The two people holding the ends of the rope can see what they are doing as they tug the rope back and forth with a sawing motion. Even if the knots put her on her tiptoes, they can adjust to stay on target.

And with a blindfold on she cannot anticipate, and brace herself against, each change of direction.