The dinner.

Rose was slumped against the cool window of the door, her body overwhelmed by the persistent hum of the vibrator buried inside her pussy. She vaguely registered the familiar sound of their favourite band, but it was background noise against the sexual haze that her mind was in. She caught a sign from the corner of her mind, and she identified it as the city limits marker. She tried to remember where they were going, but the constant **** on her sex made thinking hard. She finally remembered though, they were going to their favourite restaurant, which was built at the beach line, looking out over the sea. They must have just left the city on their way to the coastline.

Unfortunately, she forgot that cars are allowed to go up to 80kph outside of city limits. She was reminded of this when the car sped up, and the vibrator increased the strength of its vibrations to match. Rose let out a long drawn-out wail as the increased sensations sped up her growing orgasm. For the next ten minutes, she was squirming moaning, and struggling against the handcuffs, as the relentless sex toy **** her to cum three more times. She barely noticed the car slowing down, but sighed in relief as the vibrator slowed down as well until it was a soft hum. She slowly recovered her breath, and sanity as her orgasmic euphoria disappeared. She noticed they had parked in a parking garage, probably the one near the footpath leading into the dunes.

Rose turned her head to the left, and saw Amanda looking at her with some mild concern.

'You okay there love? For a moment I thought it was too much for you to handle.'

Rose gave a weak smile and managed to bring her arms out so Amanda could unlock the cuffs. When she was free, she leaned back into the passenger seat and wiped a bit of sweat from her forehead.

'I'm not going to lie, it almost was. When we left the city, I thought I was going crazy, it was so intense.'

She reached between her legs, intent to remove the invading toy, but Amanda's voice stopped her. It had the same slight hint of authority to it she had used in the garage.

'Leave it. A slut like you needs to be filled at all times.' Her voice changed back to her normal, upbeat tone. 'And I guess we're lucky we didn't have to use the highway. Can you imagine how that would have felt?'

Rose shuddered as her imagination filled in the blanks. Highways allowed speeds up to 130 kph So the vibrations would be almost twice as strong as she had felt so far.

'Yeah, that would have been bad.'

She held her hands up to inspect her wrists and saw a thin red mark where the unforgiving steel had dug into her skin. She held her hands out to Amanda.

'Look at what you did, and we are supposed to go out in public now.'

Amanda took Rose's wrists, and gently pressed a kiss on either one, right on top of the marks, after which she left the car. She walked around her car, and put her arm around Rose's waist, supporting her friend as she still stood on shaking legs. Before she closed the door, she noticed the wet stain on the passenger seat, and a wicked idea filled her mind. She quickly looked around the parking garage and found it empty of other people. She prevented Rose from closing the door, and instead gently, but forcefully, pushed her down, until Rose was sitting on her knees.

'Look at my car. It is a company car, you know. How am I going to explain this? You better clean it up right now.'

She pushed Rose's face slowly towards the seat and waited until her friend took the hint.

Rose hesitated for a brief moment, but she eventually stuck out her tongue and began to lick up her own pussy juices from the soft leather seat. She must have made quite a sight if someone walked by. A hot young woman, with a revealing dress, sitting on her knees licking a car seat clean of her own love juices. The sheer eroticism of it reawakened her overworked cunt, and one of her hands reached between her legs to play with her pussy.

"Damn, you really are insatiable, aren't you. Well, hurry it up whore, we're wasting time. And don't you dare have an orgasm here, we don't have the time to wait for your slutty body to recover from that.'

Rose increased her licking while doing her best to not cum on the spot. Just hearing the usually shy woman take such a dominating stance was such a major turn on for her. And she knew that she was one of the very few who ever saw this side of her. Soon enough, the seat was as clean as she could get it, and she got back up.

'There, all clean, happy now?'

'Delighted.' And Amanda closed the door while slinging her arm once more around Rose's waist. 'But now we really must go, or we'll miss our reservation.'

The two young women began to walk out of the garage, and Amanda took out her phone to remotely lock her car. Being a prodigal programmer had its advantages. While she had her phone out, she took the moment to put the vibrator still lodged inside Rose's pussy into a new setting. This time, it was roaming. But she limited the strength to low. Putting her phone away, they walked the short distance through the dunes towards the restaurant.

Halfway there, they heard the sound of several people talking loudly and Amanda predictably moved to the other side of Rose, so she was on the inside of the path. Rose pulled her friend closer against her for comfort, it seems that she was still uncomfortable to show herself off in public. A short while later, the two women walked pasta resting spot with a few benches on it. It was a popular spot for the young kids to hang out, and sure enough, a group of five kids, three boys and two girls, were spread out at the benches. They looked to be around fifteen or sixteen years old, and they all became quiet when the two walked past them. From the corner of their eyes, they could see them all staring, two of the boys even had their mouths open. One of the boys got slapped on the back of his head by one of the girls, and that seemed to break the spell their appearance had on them.

Suddenly, the sound of a phone beeping echoed through the otherwise quiet dunes. One of the girls pulled out her phone and stared at it confused for a moment. There was some muffled back and forth between the kids before she touched the screen. Had Rose paid more attention to Amanda, she would have seen the subtle smile on her lips, but since she was more occupied with ignoring the smooth sex toy inside her cunt, she missed it. Out of nowhere, the vibrator sprang to life and began vibrating at a low intensity. Rose failed to suppress the moan of pleasure as she was still aroused from the ride and licking her seat clean. She stopped walking and pressed her legs together to get some more stimulation, completely forgetting where they were.

Amanda's soft voice pulled her out of her daze, and she looked over her shoulder to see the group of teens stare at her in slowly dawning realisation.

'Best keep moving love if you get out of range, it stops vibrating. Unless you want to give them a show, of course.'

Rose Focused her mind, and ignoring the pleasant hum between her legs, continued walking. Sure enough, a few steps further, the toy fell silent, causing Rose to both sigh in relief, and disappointment.

'I know you wanted more, but now really is not the time. You can get what you want later.'

'You are an evil woman, you know that? I bet some of those boys creamed their pants when they saw us.'

Amanda laughed heartedly at that image.

'Oh sweety, the evil part comes when you find out what else I have prepared for you. But I am sure you're going to get back at me later. After all, we have the entire weekend to ourselves.'

She leaned closer against Rose, enjoying the warmth coming off her friend's body. Rose in turn used the arm slung around Amanda's side to grab a hand full of her generous breast, giving it a forceful squeeze, before letting go.

'Oh, don't worry, I plan to get even at you for this, with interest. And my interest rates are quite steep these days, so you better be ready to pay.'

Amanda hummed in approval, and the two friends walked along in peaceful silence before they reached the restaurant. The place was an old beach pavilion, restored and converted into a restaurant that specialised in local seafood. They had found it when on vacation with Rose's parents a couple of years ago, and fell in love with it from the start. They had come here so often, that the owners knew them by name. Their daughter Olivia, who was a few months younger than Rose, had become a good friend of theirs as well.

They entered the restaurant and were immediately greeted by the sweet voice of Olivia.

'Hello, and welcome to, Amanda, Rose. You made it. I thought you wouldn't show up, you girls are never this late.'

She stepped up to the two women and embraced them in a tight hug. After they separated, Amanda spoke up in a voice that was just audible for the three of them.

'Yeah, sorry about that. The little slut here made a mess of my car, so she had to clean up first.'

Rose's cheeks blushed at the blunt way Amanda told her why they were late, but the memory of the event made her wet pussy throb around the smooth vibrator. Olivia gave a sideway glance at Rose before she laughed softly.

'That doesn't surprise me at all, she has been a horny bitch for as long as I know you two.'

Olivia had joined Amanda and Rose a few times over the years, so she knew exactly what Amanda meant. In fact, she had gotten a message from Amanda earlier today, asking if she was willing to join a little game she was going to play with Rose. Knowing what types of games those two usually got up to, and having no partner at the moment, she readily agreed. So about an hour ago, she received a mail including a special app for her phone. The attached letter had simple instructions; Install it, look over it, and it will become clear tonight. In fact, her phone gave a buzzing alert mere seconds before her friends entered, and a quick glance at the screen told her that the app had connected to a device named; "tester", which it then took permanent control off.

'Well let me bring you to your table.'

Olivia picked up two menus from the nearby stack, and guided them through the dining floor towards a table that offered a great few of the moonlit sea, and an unobstructed view from the welcoming desk that Olivia was manning. Rose and Amanda admired the view they got of Olivia as she walked in front of them. Olivia had a short, lithe body for her age, and her current hairstyle was cut short to just below her ears. She had bright eyes and a smile that gave her a certain innocent charm that few people could resist. But they knew, that underneath her appearance was a sharp mind and an even sharper tongue. She took crap from nobody and many a hopeful found out the hard way that she was not an innocent little girl. After taking their drinks, she told them a waiter would stop by for their order, and she walked back to her post at the entrance.

Meanwhile, Rose and Amanda had begun to catch up on what has been happening in each other's lives over the last year. Rose told about the large project she was now part of, and her recent break-up with her last boyfriend. And Amanda told her of her work, the most noticeable thing being that she had created some form of rivalry with two colleagues four years her senior. They apparently couldn't take her growing success and tried to put her down at every turn. After a couple of minutes, the waiter stopped by to take their order, and Rose was waiting for her turn, when the vibrator in her aching and wet pussy began to hum softly. She gasped in surprise, and crossed her legs instinctively, causing both Amanda and the waiter to look in her direction.

'Anything wrong Rose?'

Rose just shook her head, and focused hard on containing her composure, but the toy was making it very difficult on her. In the middle of giving her own order, she felt the power increase ever so slightly, and instead of steady vibrations, it came in short bursts. It took every bit of self-control she had, but Rose managed to give her order without letting anything slip. Or so she hoped. She discreetly looked around, seeing if anyone had their phone out, but all the customers she could see were focused on their meal or partners. She felt a soft, warm foot slide along her leg, going higher and higher until it was against her string. The extra pressure pushed the toy deeper into Rose's wet slit, and she whimpered softly.

'Are you sure there is nothing wrong love? You look kind of distracted.'

Rose Looked at Amanda's face and saw the smug look in her friend's eyes. She knew exactly what was going on, and she loved every second of it.

'Like you don't know what is happening right now. Someone is fucking around with the vibrator.'

Amanda kept rubbing her foot against Rose's crotch, adding more and more stimulation.

'Hmm, looks more like someone is fucking around with you. But don't tell me you don't love it? I'm sure you could cum right now.' She pulled her feet away, giving Rose some rest from her growing arousal. 'But you're not going to. Aren't you? You're going to hold it back until after we had our dinner.'

There it was again, the commanding tone that never failed to turn Rose on. And as predicted, her pussy throbbed in need, but she fought it down. She somehow managed to resist the vibrations inside her snatch as the toy shifted through an ever-changing pattern of vibrations, pulses, or silence.

Over at the welcoming desk, Olivia was experimenting with the various settings the app allowed her to use. There were so many options, but she had to keep it low profile because of the people around them. She slid a marker on the main screen a single step higher, causing the vibrations to intensify, before moving it down two. She knew this would drive Rose insane in the long run, and she saw the young woman squirm in her seat every time she changed one of the settings. Her phone was hidden from view by the greeter's desk, and her well-practised face hid her intentions from onlookers.

Every now and then, she had to stop to greet new guests, causing the toy to fall silent, and she saw how flushed Rose's face was when she walked by with a new group. She knew a standard diner would take about two or three hours, so this would be fun indeed.