Peter was in bed with his best friend's wife. Just as things were reaching a climax, he suddenly stopped and sat on the edge of the bed, holding his head in his hands.
"What the hell's wrong with you?" his partner asked.
"I feel just like a regular son-of-a-bitch, getting some of my best friend's pussy," the man moaned.
"Well," she soothed, patting his back, "you can stop worrying. You're not getting his pussy. His pussy is five inches deeper."