Thursday had been pretty slow so far. Phyllis had been there alone for the first two hours, so Derrick had managed to convince her that she needed to hop on and ride his cock once before he was drugged up.
The rest of the morning Jan had been present. He quickly learned that she apparently had no idea as to what was going on. Jan did in fact know about Terri's actions on Tuesday. But she had thought that by keeping Terri accompanied that nothing like that would happen again. Jan did make some comments to Terri, trying to see if she could get her to admit anything. But Terri never said a word. Derrick was sponge bathed at usual, only Jan did most of this herself. Even though she was more prim and proper than the other two, he noticed that she did linger around his cock longer than necessary. Especially after it had grown erect. Derrick sheepishly apologized but Jan acted as if nothing out of the ordinary had happened.
Fortunately for Derrick, Jan received a call around 1:30 and had to leave for the day. Now it was just Derrick and Terri. Jan wasn't as concerned because Derrick was fully awake most of the time now and she was certain that Terri would never try anything on him while he was conscious.
Derrick wasted no time before convincing Terri to disrobe and join him. She climbed atop him and settled herself onto his cock. Derrick fucked the older woman for all he was worth as she slammed down on his shaft. Derrick came first but Terri continued to ride him until she had climaxed as well.
It was shortly after that that Derrick unveiled a surprise to Terri. He informed her that he was expecting a guest this afternoon. A pretty young lady he knew from school who was willing to come by and "Make him feel better." Terri almost felt a pang of jealously as the thought of another girl riding Derrick's prick. But she knew that there was nothing she could do about it. Derrick continued by telling her that he wanted her to leave the front door unlocked, stay naked, leaving her clothes in his drawer, then to hide in the closet and play with herself while he fucked the other girl. Terri hesitated at first, but then said that she would do it. Shortly after 2:30 the phone rang and Derrick answered it. He told the girl that the door would be unlocked and he was alone. So to come on in and lock the door behind her. At that point Terri shoved her clothes into Derrick's drawer then got into the closet, leaving the door cracked open just enough to see the bed.
A short time later Terri heard the front door open and close. Then someone entered the bedroom. Terri about shit when she heard the voice that greeted Derrick. Her heart skipped a beat as she saw her 18-year old daughter, Courtney, enter the room. Courtney was a cute girl, taking after her mother in more ways than one. She stood about 5'6" and had light brown hair. While her cute face was not 'beautiful', her body was. She had a 36'D chest, slender waist and a firm, round ass. Terri wanted to jump out of the closet and yell at Courtney for coming here, but being naked as a jaybird she knew that the results would be worse for her if she did. Instead Terri sat silently, praying that this was not the girl Derrick was expecting.
"Hi, Derrick." Courtney said with a smile. "I've been waiting for the chance to come by here and help with your 'therapy'." She giggled. Leaving no doubt in her mother's mind that this was who Derrick was waiting for.
"Then what are you waiting for?" Derrick asked, throwing the sheets off of him so Courtney could see his hardening cock. Courtney pulled off her top and unfastened her bra, allowing her D-cup tits to bounce free. Then she kicked off her shoes, dropped her pants and slid off her thong panties. Terri was surprised to see that Courtney's pussy was shaved.
Terri watched as her daughter climbed up on the bed, straddling Derrick's face with her legs and leaning forward so that the two of them were in the "69" position. She wanted to jump out of the closet to prevent her daughter from having sex. But she was powerless to do so without getting herself into even deeper trouble. She was stunned by the sight of her little girl opening her mouth and trying to take as much of Derrick's cock into it as possible.
"Have you been fucking someone else?" Courtney asked as she pulled her mouth off his dick.
"Only your mother." Derrick replied, causing Terri to momentarily panic, until she heard Courtney reply, "Yeah, you would. I'll bet she had a heart attack when she saw the size of your cock when she cleaned you."
Terri realized that it was her own juices that Courtney was tasting on Derrick's cock. The thought grossed her out as she watched her daughter once again start blowing the young man off while he licked her bald cunt. Terri couldn't help but feel herself growing wet again as she heard Courtney moan with delight as Derrick ate her pussy. Courtney's moans became louder and the girl was doing her best to take in as much of Derrick's dick as possible as he licked her clit. Terri watched her daughter's ass rise and fall and could tell by the site and sounds that Courtney was on the verge of an orgasm. A muffled cry escaped her filled mouth as her body began to spasm. Terri caught herself rubbing her clit as Courtney climaxed.