Three whores decide to see who has the biggest snatch. They get naked, and start fingering themselves and each other.

After a few minutes, the first one squats on a glass top table, and then they measure the slimy outline she leaves.

The second one then squats on the table, and then they measure the slimy outline she leaves, which is even bigger.

The third one squats on the table, but when she stands back up, the first whore says, "You didn't leave an outline."

She says, "Smell the rim."