Runaway Train 3 - Runaway Train (Book Three)

Her lust train is out of control again, as she willingly submits to a variety of bizarre demands from Mr. ringer. Yet, each experience takes her further along the track and she loves it. Embarrassment and public humiliation merely inflame her passion all the more. If she had a limit, she couldn’t imagine what it would be, because Karen was thrilled to perform any act that was demanded of her.