She came out and sat on the chaise lounge beside the pool. I swam to the edge of the pool, towards Cathy, and said, “Come on. The water is fine.”�...�Need to apply the lotion,” Cathy replied. Turning towards Derry she said, “Honey, will you please?”“You don’t need to ask, dear. I will rub you,” Derry replied as he walked towards her.As I looked at Derry, I chuckled. Cathy, without wasting a moment, said, “What was that?”“What was what?” I replied smiling at her.“You laughed.”“Yes. Looking at you. For the next few days, this was the pattern of behaviour that wasrepeated: an hour of so of kinky sex at the start, followed by studying.Then lunch and another hour of kinkiness before the final study period. Itseemed to work surprisingly well.As Teresa was a good girl - at least at first - the need o keep her inchastity at night was much reduced. The first couple of weekends went bywithout her needing the chastity device.As exams were getting closer, we decided to reduce the sex part. The expression on her face was one of fear and she had a ball gag in her mouth. I blew the picture up and looked close at her body. She had several bruises that appeared to be a mix of recent and older ones.I closed that view and brought up another. This one showed the same girl with an adult man standing above her obviously masturbating. The next one showed him spurting his semen on the girl's face, chest and abdomen. A few frames later the shot was of the man having full penetration vaginal. Mary tells me you like butch girls.” “I like girls, well, women to be more accurate.” “Does that mean you’re not fussy?” “No, it means I like women and if the one I like a lot happens to be butch I am always rather pleased.” “Are you naked under that dress?” I thought about that for a second or two. “Do you know, I can’t remember.” She grinned a wolfish grin. “Perhaps someone should check if you’re memory is failing?” “Knowing this lot, somebody will.” She threw her cigarette side and moved.