Hence the speed differential

Photo credit: https://bentleyhotelnewyork.com/greenwich-village/

1 am in Greenwich Village:

On the sidewalk in front of us, the one pudgy short girl in very tight pants motored ahead of the other pudgy short girl in very tight pants. And when I say, "motored ahead" I mean in a relative kind of way. Tom and I just kind of strolled by the two of them.

We might have appeared nonchalant, but make no mistake, we were paying attention. There was drama.

The one in the back squawked at the one in the front, something about slowing down. I couldn't really hear so well. I was totally distracted by the frantic slapping of their strappy sandals on the sidewalk and my disbelief over how it was possible to move one's legs that rapidly and at the same time achieve such low velocity... I was astounded really. It was like watching hummingbirds. Hummingbirds from say Long Island.

The one in the front really started to pull away. But by then they were way behind us.

I asked Tom what was going on back there. He said, "The one in the front had to pee a lot more than the one in the back. Hence the speed differential."