Corey Jones was conducting an experiment. His phys-ed class had an assignment to test electrostimulation pads to see if they produced actual results or if they were bogus.

For weeks, he had placed them on every muscle on his body to see if he saw any results. For weeks, he’d seen nothing. Bupkis. Nada.

The deadline for the assignment was coming up and he was worried that he’d have nothing to show for all his effort. Frustrated, he ripped them off and tossed them in his lap.

He began to feel something. Something he wasn’t expecting. His dick was getting hard. Harder than he’d ever felt before. His cock filled his underwear and pressed tightly against his shorts.

“Holy shit, that feels amazing,” he said to his empty room. His dick was being stimulated in ways he’d never felt before. Almost painfully hard, he pulled the pads away. His dick pulsed strongly with his heartbeat, swaying, and pulsing as he looked at it.

Outside his bedroom door, his sister Amy was staring in.

She stared at his dick. No, she thought, that was a cock. It was much bigger than her boyfriend. She hadn’t ever seen her brother’s cock before, but she wanted to see more of it.

Her panties were soaked with her secretions, as she imagined what his John Hancock would feel like. She imagined that he’d split her into two pieces. She relished the thought as her fingers pressed into her pussy through her clothes.

He stood and Amy panicked. She rushed back to her room to avoid being caught. As much as she now desired his cock, she wasn’t ready to be caught peeping on him.

His heavy clomping footfalls followed him as the front door slammed shut. She smiled to herself. He’d be gone for a while. Plenty of time to herself before Mom got home.

Even though she was alone in the house, she snuck into his room. Inside she looked at the mess of a typical boy’s room. He had clothes everywhere, strewn about. She shook her head. He’d never be able to bring a girl home to this.

On the bed, the electro-stim pads were lying there, calling to her. Her pussy twinged in anticipation. If they made her brother hard, what would they do to her? She almost felt like she wouldn’t need to use it. Her clit was so hard. It rubbed on her panties with every step she took. It was a recurring problem for her. Sometimes it felt like the wind blowing in her direction would make her clit hard, and get her pussy wet. She usually relished the feeling of the fabric rubbing against it. Changing underwear multiple times a day was normal for her. Her friends joked about the supply of panties she always kept on hand.

The electrostim was a simple machine. Two leads from the handheld device to flat, square pads that stuck to skin. A simple on-off switch and a dial were the extent of the controls.

Pulling off her shirt and bra, her erect nipples mirrored her hard clit. They always seemed to be in sync and hard at the same time. Placing the pads on her left breast, she slowly turned the dial. She felt nothing at first. If she hadn’t seen what it had done to her brother, she might think it didn’t work at all. Soon though, she felt her breast and nipple tingle. The stimulus made her nipple almost painfully erect. She had to pinch and pull at it to help relieve the tension.

Unfortunately, this only increased her pleasure. A moan escaped her lips without realizing it. Each pull and twist sent waves of pleasure to her other nipple and clit. She couldn’t believe how good this felt.

“Fuck this feels good,” she said to the empty room.

She pulled the sticky pads off her breast, her breath coming fast and hard.

“Pussy time, little buddy,” she said to the pads. Shimmying out of her shorts, a wet spot was evident in the crotch. She’d soaked completely through her panties. She peeled the underwear down off her ample, curvy ass. Some might call her fat, her curvy body had been called voluptuous, hell one guy had even called her zaftig–she’d had to look that one up.

Free now from her clothing, she laid back and spread her legs wide. She placed the pads on either side of her pussy, near her clit. Starting from a low setting, she slowly turned up the dial. She felt herself getting warm, and her clit felt harder than it ever had before.

Pussy juice leaked out from between her lips. The fluid tickled her as it ran down the back of her thick thighs, and even a little into her buttcrack.

She fingered her clit. Like her nipple before, it was almost painfully erect and super sensitive. Each touch caused her to shudder. She’d never felt her clit do that before.

Throwing caution to the wind, she thought, ‘Fuck it’. The dial went all the way to 11.

The feeling was indescribable. She almost couldn’t move. The stimulation through her clit made her feel like her pussy was on fire. She came fast and hard, surprising her. It happened before she knew it was coming, and her whole body lit up with pleasure. Her pussy gushed as she squirted for the first time in her life. The fluid coated her legs and dripped onto her brother’s mattress.

She laid there, the stimulation overwhelming her. She couldn’t even move to change the power setting. She felt like she could die right here and now and it’d be worth it.

Meanwhile, unknown to her daughter, Mia Jade was home from work. She had no idea what her daughter was doing in her brother’s room, on his bed.

Walking to her son’s room, she heard a female moaning. “Does he have a girl in there? He knows better than that.” She went to his door.

What she saw shocked her to her core. Her daughter Amy was lying on her son’s bed. Naked and writhing around. Between her legs, pads attached to the sides of her pussy, and a large wet spot on the sheets. Her legs were dripping with some kind of liquid.

Her daughter shared her body type. Both had large tits, fat asses, and thick thighs. The men she had dated appreciated her form, calling her thicc and juicy.

Coming to her senses, Mia Jade opened the door and confronted her daughter. “Amy Jean, what do you think you are doing?” she said in a loud voice.

“Mom!?!” Her daughter looked at her with half-closed eyes. Her voice was languid. “You have to feel this, it’s amazing.”

“Stop that right now, young lady.” Mia pulled the leads until they popped off her daughter’s skin. Amy was finally able to relax; the stimulation of her pussy abruptly ended. She had no idea how many orgasms she’d had. Maybe she’d blacked out there for a while.

Holding the leads, Mia said, “Go to your room, now, you little slut. I can’t believe you’d act like this in your brother’s room.”

Shakily, Amy stood. Sweat and her various juices ran down her skin.

“Jesus, Amy. Go clean yourself up.”

Amy leaned in close, holding on to her mom for support. The smell of her arousal invaded Mia’s nose. “Try it, Mom. It’s like nothing else you’ve ever felt. That thing made me fucking squirt. Can you believe that?”

“Go, Amy. And stay out of your brother’s room.”

She walked out of her brother’s room, still shaky.

Mia Jade shook her head. Her daughter had always been a handful like she was at that age. This must be what her mother meant when she said that Mia would get hers someday, and her kids would give it to her. It figured that she would do something like this. She looked at the soaked sheets, she’d need to strip and change them before her son came home.

Sighing, she sat on the edge of the bed. The pads fell into her lap. She didn’t know the device was still running, but she found out real fast when they put her into a state of arousal, even through her leggings.

“Oh my god. Is this what Amy was feeling?” The current rippled through her. Much too long without a man, and with only a dildo to fill her needy pussy, she’d been primed for the effects of the electrostimulation device.

She scooted her leggings and underwear down just far enough to expose her pussy in her son’s room. Her lewdness amazed her. She’d never thought that she’d be taking her clothes off here, of all places, but she couldn’t resist herself.

Laid back on the bed, feet still on the floor, she pressed the pads on either side of her mound. She was immediately assaulted by the maximum power they offered. It caused her to cum immediately. She screamed out in surprise–something her daughter heard from her room–as her pussy clenched and unclenched through her orgasm.

She wanted to sigh in contentment, but she wasn’t able to relax. The infernal device never stopped stimulating her sensitive tissues. She had three more orgasms before she managed to pull the pads off.

She laid there panting from the effort of cumming so hard and fast. Her legs felt wet. She must have squirted as well. It was her first time, just like her daughter.

She woke up when she heard the front door slam.

“Oh shit, Corey’s home.” Scrambling, she stood and pulled her panties and leggings up. Her squirt had dried on her thighs. The pungent aroma of that and her and her daughter’s cum would be immediately obvious to her son. The sheets were damp with both of their squirt and cum.

“Damn it.” She yanked the sheets off the bed. She groaned when she saw the wet spot on the mattress. He was almost to his room, his heavy footfalls giving him away. He’d never be able to sneak up on anyone.

In desperation, she pulled the comforter over the mattress. That should give her some time.

The door swung open and Mia Jade squeaked in surprise. “Mom? What are you doing?”

She held up the sheets. “Just a little laundry, honey.”

“This late?”

“I got sidetracked today. I’ll bring new sheets up for you, okay?”

“Sure Mom, whatever.”

In the hall, she leaned against the wall. Her heart was pounding. She couldn’t tell if he’d bought her story.

Mia Jade opened the door. The house was surprisingly quiet. When she went to her room, she heard a moan from Amy’s room.

The door was open enough to see the bed. And on the bed, her curvy daughter was laying, her legs spread wide. The pads of the stim were attached to the sides of her pussy. Mia felt her pussy leak into her panties as she remembered the feelings from when the device brought her to a string of amazing orgasms, just yesterday.

What was more surprising though was that her daughter had a cucumber stuffed into her pussy. The cucumber Mia had bought for the salad for tonight’s dinner.

Amy was roughly jamming the long green vegetable as far as she could into her pussy. Mia watched in awe at how far she was able to stuff it inside herself. Several inches at least.

And the words from her daughter’s mouth, “Fuck me, Corey. Fill me with your fuck stick. Split me open, bro!” Mia’s mind reset when she heard this. Her daughter was fantasizing about her brother.

She couldn’t look away from her daughter’s masturbation session. The cucumber gleamed from her daughter’s juices.

Mia slid her hand down the front of her skirt into her panties. The crotch was wet against her fingers, as were her pussy lips.

Amy fucked herself while saying all the lewd things she wanted her brother to do to her. Mia was shocked that her daughter thought of her brother that way.

Mia fingered her clit in time to her daughter’s fucking. Suddenly, Amy cried out and clenched down. The cucumber leaped from her pussy, and landed with a wet thud on the floor.

Breathing hard, she turned the device off and pulled the pads off. Mia looked at the battered vegetable and wondered if her son was well-represented by it.

She backed away from the door and rushed to her room and fell face forward onto the bed. Her hand had never left its place playing with her clit. She thought of her son. The thought of him filled her with desire. She’d never thought of him sexually before, but she’d always knew he’d be the handsome man he’d grown up to be.