It was just after lunch on Friday, Sky's stomach was churning badly, she felt a bit sick, she knew what was coming today, and she just could not get comfortable with it. She could not believe that her arse felt wrong without the butt plug in. Rob had taken it out yesterday before he spanked her, she knew where it was, but Rob had instructed her not to replace it today.
Tuesday evening had been hell. The plug did not feel comfortable at all on Tuesday, and her arse was on fire from the spanking Rob had given her with that wooden spoon. When Lily got home she found it really hard, she could not let on to her sister, that would ruin everything, but she made a couple of really silly mistakes. When Lily came home Sky came downstairs to say, 'Hi,' and ask her about her day, it was something she did regularly, and Lily might thing something was up if she didn't. Only when she went into the kitchen, Rob was stirring the curry for dinner with the wooden spoon he had spanked her with, and she noticed at just the wrong time, falling over her words in the distraction. She looked and sounded a fool, and Lily defiantly thought something was up. Lily had gone upstairs to change, and as soon as he heard her foot steps on the floor of their bedroom, Rob turned to Sky.
'Show me the butt plug,' he ordered.
'No, she might come back down,' retorted Sky.
'Now!' Rob commanded.
Sky turned away from him, the last thing she needed was to see his face, she pulled her jeans and panties down to the tops of her legs, and as soon as she did she wished she had undone them. The scrape across her raw cheeks was hot and burned, but she gritted her teeth and bend over to expose the plug.
'Very good,' said Rob, 'expect to be asked again tonight.'
'Fuck off,' said sky as she undid her jeans and very carefully pulled them back up. Before she had got them up though, Rob flicked the plug making it bounce about, and mild pain shot through her.
'Don't speak to me like that,' he said
Sky kept her mouth shut, but was not quick enough completely sorting her jeans, Lily appeared just as she was doing up the last button.
'You teasing Rob?' Lily laughingly asked.
'No, bloody button popped open,' sky covered.
With that, Lily smacked Sky's arse, and said, 'you need to work out more, lose that arse then.'
It was all Sky could do not to scream out, the painful feelings shooting all over her back and legs, and the plug moved to, she must have caught it with her hand, but she didn't say anything, thank god.
Then later on she sat down to hard, and a squeak leapt from her mouth before she could stop it, Lily gave her the oddest look. It took Sky a few moments to regain the capacity to speak, which gave Lily pause to really look at Sky.
'My phone,' said Sky, as calmly as she could, 'left it in my pocket and it dug in.'
Lily seemed to accept this, but Sky's phone was in her hand. Sky was not sure that Lily hadn't noticed and was just playing along.
On Wednesday morning about 20 minutes after Lily left for work, Sky got a facetime call from Rob.
She answered the call while sitting in bed, as she was already playing on her phone.
'What!' she demanded in an angry voice as soon as Rob appeared on screen.
'Show me,' was all he said in a calm voice.
Sky looked at him with a look on her face that she knew screamed, 'fuck off,' but he just calmly sat. Sky pulled the covers off reluctantly put the phone on the bed, so Rob would get a good view of the ceiling and nothing else while she moved her naked body so the butt plug would be visible. She then carefully picked up the phone and without showing her anything other than the room moved it to between her legs, the camera facing the bed so there was no view of her. Very carefully she tilted the phone so her buttocks against the bed came into view, then the plug. She held it there for about 5 seconds then moved it back taking care to show nothing else. Once she was back under the covers she turned the phone around and looked into it.
'Happy?' she demanded.
'Yes, thank you,' replied Rob, 'and we will discuss your attitude later!'
Sky sat there as the phone went blank, and thought, 'Why can't I be nice, I know I hate him for this, but I have decided not to walk away, so why am I not making it as easy for myself as I can?'
Sky laid in bed and thought about Friday and Yesterday, her bottom was still sore, and she could see red marks on the phone just now, if Lily saw her bottom she would not be able to explain it. Red marks, her mind thought about them, she felt her fanny flutter as she thought of the spoon landing yesterday, that pain that was pleasure, that humiliation that she seemed to like. Her head was spinning though it all, and before she knew it she was rubbing her clit.
Sky snapped back to reality it was 1:40, she had an hour, she knew this was going to be bad, and thought about going out for the afternoon to avoid Rob, coming back when Lily was home, but that would just make things worse.
The reason she knew it would be bad, was when she had been spanked on Wednesday and Thursday, Rob had shown her things, the restrains she would be in today for one, she knew she would not be able to move or fight. There was a bar to spread her legs about a meter apart, and cuffs for her wrists connected to her ankles, her pussy fluttered at the thought, but she really was not sure why, she was scared.
That should have shocked Sky enough, she had no idea her sister was so kinky, but the bench that Rob showed her the next day was something else. So many straps and places to tie things to. Rob had instructed that she would be lying along it her cuffed arms down each side, and then her knees either side of the end, with a strap across her back and another around her legs. She had got into the position required on Thursday, without any of the restraints, even without them this felt like a powerless position.
Rob had also given her some clothes for today, there was a short school girl skirt, white almost see-through blouse, and then there was white stockings and suspender belt. Sky had also been instructed not to wear panties. She thought about this as she moved about the house, opening all the curtains, tidying the washing, loading the dish washer, and finishing the hoovering. She did not want any excuse to make today worse.
Sky was in the process of making all the beds when the phone went, it was 2:02, and the call was Rob.