The next door neighbour

Jen came back into the room in just moments. "He'll be over anytime now!" she said, excited.

"Who is it?" Mark asked, suddenly feeling a little uncomfortable with the situation, and with Jen's anticipation.

Before she could answer, the door bell rang. "That'll be him!" She said. "Come on, quick!" She grabbed Mark's hand and pulled him towards the front door. He was wondering how "he" could have come so soon...

His thoughts were answered as the door opened, and there stood his neighbour, Carl. He had been friends with Mark and Jen for the 4 years they had lived here.
"Carl?" Mark asked, surprised.

"Hey Mark. Hey Jen." Carl said, and Mark realised the massive tent in Carl's pants when the newcomer looked at Jen. Carl stepped into the house and wasted no time, immediately grabbing Jen around the waist and kissing her deeply on the lips. Mark felt very uncomfortable now, not sure what to do, unused to the strange and somewhat arousing sight of his wife with another man.

Jen suddenly broke off the kiss, giggling. "Come on, let's go to the bedroom!" she said, and before either man could say anything, she turned and ran down the corridor. Carl turned to Mark, and suddenly Mark's dreams of sucking a cock came back into his head... from the look on Carl's face, he had something similar in mind...