HIGH DEFINITION VERSION. Rachel's step-son Aaron is a total geek and fancies himself an inventor. So far he has not invented anything practical or useful but Rachel does not want to discourage him. His step-sister Misty loves her step-brother but would rather not be seen in public with him. He is pretty embarrassing when you are trying to be cool. Misty calls out when she comes home. Aaron is in his room as usual working on some stupid gadget. He is excited and tells her that he thinks that this one is going to be a big hit. It is a device that stimulates brain functions. It could help peop...

HIGH DEFINITION VERSION. Rachel's step-son Aaron is a total geek and fancies himself an inventor. So far he has not invented anything practical or useful but Rachel does not want to discourage him. His step-sister Misty loves her step-brother but would rather not be seen in public with him. He is pretty embarrassing when you are trying to be cool. Misty calls out when she comes home. Aaron is in his room as usual working on some stupid gadget. He is excited and tells her that he thinks that this one is going to be a big hit. It is a device that stimulates brain functions. It could help people with learning problems overcome brain injuries. He asks Misty to test his invention. She asked him if it was going to fry her brain. He told her that there would be no problem. He attached the collar to her neck and inputted the first instructions into the remote. She felt a little jolt and reacted. He told her that this was normal. He punched in the second set of instructions and gave her some simple directions which she followed to the letter. He knew it was working because Misty never did anything that he told her to do. He punched in the third set of instructions when it stopped going according to plan. Misty started touching her crotch and breasts. Aaron looked at the remote control and tried to figure out what went wrong. It suddenly occurred to him that this was a chance for him to have real sex. He looked around to ensure that his step-mother was not home. He told Misty to take off her sweater and pulled down her dress to expose her young breasts. She took it off and resumed playing with herself. He dropped his pants and told her to suck his cock. She bent over and took his cock in her mouth without any objection. She continued to suck his cock until he instructed her to lie back on the bed. He spread her legs and pulled her panties to the side. He played with her pussy and she almost immediately had an orgasm. The device had made her clit extra sensative. He told her to play with her breasts while he played with her pussy. He was so horny that he told her to resume sucking his cock until he load of cum down her throat. He removed the collar and found to his surprise that she still responded to his commands. That effect was permanent! He knew that his step-mother would be home soon so they went into the living room to wait for her arrival. Rachel came home from shopping and greeted them. She told Misty to straighten up her dress but she did not react. After a moment Aaron told Misty to straighten up her dress and she did it. Rachel asked Misty a question and she did not respond. After a moment Aaron told her to answer and she did. Rachel was puzzled why Misty was doing what Aaron said and not her. Misty never listened to Aaron. Aaron told his step-mother that he was very excited about his new invention. Rachel sighed but tried to encourage him. Aaron told her with a sly grin that he had to show her how it worked. He led her back to his room/workshop and had her put on the brain stimulation device. He punched in the instructions into the remote control and it worked just like it did on Misty. His step-mother immediately ran her hands over her breasts and crotched. He told her to unbutton her blouse and she did. He ran his hands on the bountiful breasts of his normally conservative step-mother. He decided to go for broke. He pulled out his cock and told Rachel to suck it. She sank to her knees and started blowing him. He decided that he wanted more than a blowjob. He decided that he wanted his step-mother and step-sister at the same time. He told Rachel to go into the living room. He called Misty into the room. She had been cleaning the kitchen as instructed. A first for her. He told the women to undress each other. He told them to kiss and feel each other's breasts. Aaron directed the action. Misty was sitting back on the couch with her legs spread wide. Rachel was licking her step-daughter's pussy while Aaron stroked himself. It was almost an overload for the young geek. Misty suckled her step-mother's breasts while Rachel played with her pussy. Aaron told Misty to play with Rachel's pussy. The women played with each other as Aaron got a closer look. He licked both their pussies to get them nice and wet. He slid his cock into his step-sister first. He pumped away her until she orgasmed. He was getting ready to switch to his step-mother but first told her to lie back on the couch. Misty climbed between her legs and licked her pussy until Rachel had an orgasm. Aaron climbed in between Rachel's legs and pumped her pussy while Misty sat on her face. Misty diddled Rachel's clit while her pussy was pounded by her step-son. When Aaron was ready to cum he told them to get on their knees and suck his cock. When he finally exploded Misty licked it up. She let it dribble out of her mouth. Aaron instructed her to lick it all up and swallow it. Aaron is going to be the man of the house from now on.