Upon arriving at home, they all went in, with their naked, denuded mother in tow.
Ann had never felt so naked and ashamed, yet she was horny as hell.
Dane stepped up, pulled down his zipper, and told his mother to thank him with her mouth.
Ann dropped just inside the door and took her son's hard cock into her mouth while reaching down to quell the fire in her loins.
Dana saw her mother put her fingers into her horny twat and said, "Fucking horny cunt can't keep her fingers out of her snatch."
Dane pulled his cock out of his mother's mouth and stepped behind her, dropping to his knees.
He instructed his mother to take his cock and place it in her cunt.
Ann hated the degrading terms, but at the same time, it turned her on to be treated like a common slut.
Dane was now pushing in and out of her very wet cunt. Dana removed her clothes and, sitting on the floor, scooted her ass under her mother's head.
Dana was about to tell her mother to eat her twat, when Ann took it upon herself to know what her daughter wanted.
Ann thought to herself, eating my daughter's pussy is like eating my own. I made this girl. She came out of mine. I'm eating hers while the son I gave birth to is filling my slut cunt with his cock.
All these thoughts caused a fire in the depths of her soul as she climaxed again and again.
Dane could not believe how oversexed their mother was, and after feeling her cum multiple times, he reached his climax. Burying his cock as deeply as physics would permit while discharging a load of hot sticky cum in the twat of the cunt who bore him.
Dana was blown away by the enthusiasm of her mother's cunt lapping.
Unable to hold out, she grabbed her mother's head while she pumped what felt like a gallon of girl juice down her mother's throat.
Her mother and brother collapsed to the floor. All three dragged themselves up and took showers. Mom went to the master bath while Dane and Dana went to the other bath, showering together.
Dane soaped up Dana, running the bar of soap around her firm tips, up her ass crack, and through her cunt lips.
Dana in turn soaped Dane's body, head to toe, paying special attention to his cock and nut sack.
After their shower, they joined their mother in her king-sized bed, where they napped.
They woke later, did the chores, and spent the evening together catching up on reading.
In the book Ann was reading, the mother was getting fucked in her ass by her daughter, sporting a strap-on dildo while she was riding her son's cock.
Ann described the scene to Dane and Dana.
Dana described a scene in her book where the brother had his sister dancing nude in a lesbian bar and facing herself with a large dildo.
Dane looked at both of them and said, "Definitely some good ideas." "I should have you both fuck each other for some Lessie bitches."
Ann looked at her son and said, "No one is going to pay to see me dance." My tits are large and soft, my ass is flabby.
Dane looked at her and said that would change. We will set up a gym in the family room and all of us will work out.
Dana laughed, saying, "I don't need to work out."
Dane replied, "You do, and you will."
Dane went online and ordered two stationary bikes, a treadmill, and a multi-station cable weight system.
He then ordered a host of sex toys, including leather accessories.
Two days later, all of the items had arrived and were set up.
Dane called his mother and sister into the room, telling them to strip. Taking them over to the bikes, he instructed each of them to pedal the bikes for one-half hour.
The bikes had dildos strapped to the seats. They were lubed and large.
Neither one protested. They had both agreed to be Dane's sexual slaves and sluts.
Lubing the dildos, they got on the bikes and let the dildos penetrate their cunts. Dane fastened the leather cuffs that had a metal contractor button on them. He then used stick-on contactors, which he placed on both nipples of each woman.
He informed them that once he set the timer, every time they stopped pedaling, or their heart rate dropped below 120 BPM, they would receive a shock to their nipples.
Looking at his mother and sister, he said, "Ready, go."
Ann and Dana started pedaling. It was easy at first, but it became progressively more difficult. It was programmed to aggressively maintain their heart rates to burn the maximum amount of fat and calories.
Ann was the first to slow down, getting a jolt of high voltage sent directly to her nipples, causing her to scream and pedal faster.
The bike's resistance increased to the point where both women had to lift off the seat to keep the RPMs above the shock threshold.
If they lifted too far, the dildo would come out and Dane would push the shower button.
After twenty-five minutes, the resistance let up and both women were sweating profusely.
Dana slowed down, exhausted. The shock caused her to scream and exert every last effort to stop the shock to her burning nipples.
"Time's up," Dane said.
Both his mother and sister slouched forward, both too tired to lift off the dildos in their cunts.
Dane unfastened both and helped them off the bikes' dildo seats, telling them to shower.
Over the next month, the exercise period gradually increased to one hour per day. One day on the bikes, the next on the treadmill.
Both women were shaping up beautifully. Both were now getting fitter with flat tummies and fucked regularly.
Dane would often find his sister or mother with their faces in the other's lap while they sucked pussy. Many times, he would walk up behind one or the other and sink his hard cock into the assholes or cunts.
Dana was now on the pill. Mom had been on it for years.
Dane would often take them to a state park about twenty miles away, where they would walk the secluded trails in very scanty clothes or completely nude, carrying nothing but their backpacks with clothes inside.
