A brunette, a red head and a blonde climb onto an elevator when the brunette notices a small white pasty stain on the floor.

She looks at her two friends and says, "Well I don't know, but that sure looks like someone's cum to me."

The red head looks at the spot and crouches down near it. She sniffs the small stain and says, "Well I don't know, but that sure smells like someone's cum to me."

The blonde decides to settle the matter. She too crouches down by the spot. Then she proceeds to dip her finger in it and put it to her mouth. "Well it sure isn't anyone from this building."