Find an attractive young girl to join the fun

Well, Jen thought, I'll start him off with a chick, and wean him onto other things. There were SO many things she wanted to try! If this little experiment went OK, maybe an orgy, or some serious swinging...
"Lets get a sexy lady in here, and see how it goes." Jen said finally.
Mark nearly blew his load there and then! He could fuck one, and suckle a pair of jugs at the same time... the possibilites were endless!
"So.... who do you think? What are you comfy with doing?" he asked.
"Hmmm... no outright lesbian stuff, but i could go down on you at the same time."
"How about working my balls as i fuck her?"
"Aaah... maybe, I'd have to see. Depends on how strange it felt. I guess it would also depend on who it was..."
He was hoping to get a real innocent, and corrupt her mind, making her a little sex fiend. The neighbour's daughter was 18, a very tantalising subject...
"How about... the school girl from next door?" he asked.