The three walked over to the large stall across the barn, Mike being lead by the leash attached to his balls. Deb looked over the gate and saw her 16-year-old daughter Cathy, squatting down in front of her 14-year-old brother Bobby. Cathy had her brother's cock in her mouth and both hands busy in her own crotch. Her left hand was between her legs pumping the dildo in and out of her snatch while her left hand was behind her with two fingers stuck up inside her ass hole.
Deb watched her daughter and son moaning and moving and her own hand instantly went to her pussy lips to rub. Jeff opened the gate and walked toward Deb's son and daughter. He pulled the beautiful 16-year-old to her feet and led her by her arm to the back wall of the stall. The back wall had two padded 2x4's sticking out 8 inches long. Where they were attached to the wall and about 12 inches apart. They were braced underneath the ends with two other 2x4's at a 45-degree angle back to the floor. Jeff turned Cathy around so that her back was to the wall and sat her on the 2x4's.
It was much like a chair without a seat. The bottom of Cathy's thighs and ass cheeks rested on the boards and the legs below the knees hung down from the ends. Jeff pushed her shoulders back against the barn wall between two large rings. He hooked one end of a thick strap into the ring at Cathy's left side. Jeff pulled the strap around her left forearm, across the top her breasts, causing them to squish out under the strap, across her right forearm, then hooked it in the large ring at her right side. He pulled the buckle tight until the girl's breasts looked ready to rupture from under the strap.
Jeff walked over to the wooden box by the gate and lifted out what looked like a 3 foot long box with a motor attached and two bicycle peddles sticking out the sides. The top had two holes at the far end away from the pedals. Jeff placed the device on the floor between Cathy's legs. He pushed the long box under her ass until it hit the barn wall. He lifted each of the young girl's feet and strapped them to the pedals. He walked back to the wooden box and removed two dildos attached to two long metal shafts.
Taking the dildos over to Cathy he reached under the bound girl and pulled out the silver dildo from her cunt. Cathy groaned as Jeff let it dangle between her legs and pull on her nipple rings. Jeff placed one dildo at the entrance to Cathy's cunt and pushed it all the way up inside the young girl. When it was in as far as it could go, Jeff took the second dildo and pushed it in her ass until it also stopped. Jeff then pushed the two dildos up with such force that Cathy screamed as the pressure raised her ass up off the padded boards 6 inches.
Jeff had enough clearance now between the bottom ends of the long dildos and the top of the box. He rested the ends on the top of the box and the knocked them over to fall in the two holes in the top of the box. Cathy's ass and thighs dropped back down to the padded boards. Her pleading screams stopped but her labored breaths continued as she adjusted herself on the two dildos in her body.
Jeff opened the side of the box and attached the ends of the dildos, sticking through the holes, to the mechanism inside. Cathy sat with wide eyes looking at her mother and father at the gate. She ground her crotch around in small circles on the two long objects in her body, making the chains attached to the silver dildo swing and pull her tits left and right.
Jeff squatted down at the side of the pedals. He grabbed one peddle, with Cathy's foot attached, and moved the peddle around a circle. The two dildos pushed up and down in opposite directions into Cathy's ass and cunt as the pedals made one complete circle and stopped. Jeff reached into his pocket, produced a tube of KY jelly and covered the surfaces of the dildos, not already inside the young girl. He turned the pedal several times and watched as the two dildos spread the lubrication into each tight cavity.
Jeff let go of the pedal and watched as Cathy slowly pumped the dildos in and out of her own body. Cathy looked wide-eyed at her mother leaning over the gate and watching her.
Deb didn't seem to be able to keep her body from moving as she watched her daughter enjoying herself. Her hand was continually caressing her own cunt lips as much as it could around the lock.
Cathy increased the pace as the dildos in her kept up with the ever-increasing speed. Cathy groaned and grabbed onto her nipple chains. She pulled and tugged on them as her legs increased their speed once more.
Jeff watched the young girl enjoying herself and knew it was time for the next step. He took two wires from his pocket. Each long wire had an alligator clip at each end. Her fastened one end of each wire to Cathy's nipple chains and stretched the wires out in front of the girl so she could watch. Jeff knelt down and stopped Cathy's peddling. He hooked the other ends of the wires to the generator motor at the side of the box. He stood up and walked away from the young girl.
Cathy started peddling slowly, eager to get back to the pleasure her body had just starting to receiving, before she was stopped by Jeff. As she peddled she felt a tingling in her clit and nipples. It felt good and she moaned from the pleasure of the dildos and warm feeling. As she increased the speed of her peddling, the tingling changed to a prickling feeling and spread deeper into her breasts and crotch. Still nice and warm but she needed the dildos to move much faster to satisfy the cravings in her young frame.
Cathy pumped harder still on the pedals and suddenly was aware of the jolts of pain in her breasts and clit. She slowed slightly and noticed them diminish. She sped up and they became sharper and stronger. 'Nooo pleasssse. It won't let me go fast,' Cathy cried as she kept up her medium pace on the pedals.
'You can go as fast as you want or as slow as you wish Cathy,' Jeff taunted her. 'The faster you pump, the faster the shafts move inside you and satisfy the hunger in you loins. You have noticed also, that the faster you pump the more current is produced and sent to your clit and nipples. It's an exciting feeling, pain and pleasure mixed together into one, Cathy. This is a test of your womanhood. Are you a child in a woman's frame, or are you a real woman, with dominance over her own body. Pleasure has a limit. But combine it with pain, and the amount of pleasure your body is capable of receiving is virtually limitless. Use the pain to reach a higher elevation. Become a true woman Cathy!' Jeff stood by the gate as he watched the young girl struggling with her bodies raging desires.
Cathy couldn't stand it any more. Her body was so hot and the dildos were not going fast enough to satisfy her increasingly wicked needs. She peddled faster as her nipples burned and her clit started to ache. She drove her legs on and on as the throbbing increased in her clit and her breasts shook with the current running through them. She squeezed against the dildos and was rewarded with more pain from the friction.
'Yesssssssss,' she screamed. 'Oooohhh yessss.' Cathy felt as though somehow there was a wire running within her body connected her clit and nipples. The current made her nipples and clit pulse and flare at the both at the same time. She felt so immoral, thinking what she must look like, from her mom and dad's eyes. Her legs forcing the dildos into her body. The chains and rings were piercing her private areas. And everything exposed to both Mom and Dad, her brother Bobby, and Jeff her new uncle.
Jeff walked over to Bobby who was stroking his ringed cock and balls, watching his sister ride the machine and fuck herself. He led him over to where his sister, and had Bobby straddle his sisters legs and the 2x4's they rested on. Cathy's face was level with her brother's cock. Bobby immediately fed his cock to his sister's open mouth. 'Fuuuccckkiinngg shit,' Bobby screamed as Cathy sucked so hard that it hurt his hard erect cock.
Bobby had been almost ready to cum just watching his older sister. And now he could feel the stirring building up in his groin. He leaned both hands against the barn wall above his sister's head and pumped his hips in and out of Cathy's wet, warm mouth.
Bobby started cumming and screamed as the head of his bound cock throbbed inside his sister's lips. He felt his balls swell and his cock jerk but nothing seemed to happen. The tight ring at the base of his cock slowed his ejaculation to a dribble. His balls fought to expel his seed and his sister tried to suck it through the tip, but Bobby felt only pain and anguish. He kept pumping in and out of the tight lips of his sister as he continued to dry cum forever. He screamed with pain, but refused to stop. His nuts swelled enormously and throbbed against the rings that held them tight.
Cathy sucked and chewed on her brother's cock as he pounded it into her throat and bruised her lips with his pelvis. Thinking of what she was doing, and of all those eyes watching her mechanically masturbate herself while sucking her brother's cock, turned her on even more than she already was. The rhythm of the dildos was bringing her towards a massive orgasm. She could feel it starting between her legs as a dull spasm now. She peddled faster, while the increasing pain flooded her young form. As the current reached higher and higher levels she started to howl as her body shook with her little brother's cock still in her mouth.
Bobby's cock continued to throb in time with his nuts. The screaming vibrations from his sister's throat rattled against his cock head in her throat and vibrated his hard shaft down to the tight ring at its base.
Cathy knew there was nothing that was going to stop her now. She didn't care if the electricity sparking her
