Elevator Blob

Three women, A brunette, a redhead, and a blonde, all come home from work at the same time and get on the elevator. The brunette notices a blob on the elevator wall and says:

- OOOOOhhh that looks like semen.

She reaches out and touches the blob with her fingers and says:

- It feels like semen.

The redhead reaches out and touches it with her fingers, smells it, and says:

- It smells like semen.

The blonde, reaches out and touches it with her fingers and then puts her fingers in her mouth and tastes it and says:

- It doesn't taste like anyone in this building . . .