Sky had never been in a position like this, cuffed, and strapped to a bench, completely immobile, her bare arse on display. An arse that had just been pounded like she had never had before, she felt like she had been ripped in two. The pain was subsiding to discomfort now, and she could not believe that she missed that big fat cock in her. The fact that it was her sister's boyfriend and that he was blackmailing her into this should have made this the worst experience of her life, and to be fair she would have pretty much given anything to not have gone through it, but it had made her pussy wet, she wanted to cum, and she really wanted the spanking that was about to be delivered.
Rob un-cuffed her right hand, and she flexed her fingers trying to get blood moving. She moved it up to get to her clit, as she was being allowed to rub while taking her spanking. It was only 10 today, she had tried hard to keep it low, she had not expected to take the arse fuck as well as she had and really did not want to add to the pain too much, even if she normally enjoyed a spanking.
Her hand was a little squashed and she could not rub effectively, so she took a deep breath, and said to Rob, 'Please sir, will you release the waist strap a little, I can't rub.'
Rob said nothing, but released the strap, not a little, he completely removed it.
'Now young lady, how many was it, 20?' Rob enquired.
'I believe it was only 10, sir,' Sky replied.
From the clothes that he made her wear, Sky was convinced he wanted her to be the naughty school girl that was meek and compliant when caught and punished. Of all of this situation, she found this the easiest, she had role played that several times, and it actually excited her.
'I can't believe I was so lenient,' said Rob, 'but I am a man of my word.'
'Thank you, sir,' Sky replied, she could see his dick was growing again, it had gone soft after pumping its load into her arse only 2 or 3 minutes ago, but this exchange was clearly reversing that.
'Now I was thinking back to basics today, that you needed that personal touch, so it is my hand,' Rob instructed her.
'Thank you sir, I will enjoy that,' Sky said, and it was true, a week ago she never would have believed it would be true, but it was, and she never believed the next thing to come out of her mouth ever would either, but she continued, 'and if I did not completely satisfy sir, with by arse, then please use me however you want to ensure you are........ Satisfied.'
This stopped Rob in whatever it was he was doing, there was a pause, then he appeared in front of her again, and when he spoke he was very Rob, not this head teacher character that he was playing.
'You serious?' he asked.
She replied as confidently as she could, 'I do not want to be here doing any of this with you, although I think I might want to borrow some of this stuff with a boyfriend, but as I have no choice, you are forcing me to experience it, I might as well get the enjoyable part too.'
'The enjoyable part?' Rob looked genuinely confused.
Sky thought that she had just taken some of the enjoyment out of this for him, and a moment of panic crept into her mind.
'Look, the anal, I hated, I really never want that again, the tears were real, although it was not as bad as I had expected. But I like getting spanked and you are good at it, and yesterday I walked up stairs dying for a cock in me, and wanked loads before I came down again,' Sky blurted all of this, and paused before she continued.
'I actually missed the butt plug yesterday, it creates pressure when I push a dildo in and helps. What I am saying is, I will willingly submit to all of this, if you make it the full experience.'
Rob stood up, and spoke, back in the full head master, 'Young lady, I find your proposal acceptable, however, there are a couple of things, and firstly for not enjoying my big fat cock in your arse I am adding 5 to your count. Second, I will be replacing the butt plug when we are done, and the same rules apply, your bottom needs more training, it will be taking my cock again. Lastly, do not expect to enjoy every experience, I will withhold the part you enjoy as punishment sometimes. Is this all acceptable?'
'Yes, sir, I would prefer you didn't put it in my tight little bottom again though,' Sky didn't think that would work, but she was trying.
'Oh, No, young lady, it is most defiantly going in again, but I will reserve it for when you have been extra naughty, it will not pay your rent again,' with that Rob disappeared around behind her.
All through that exchange Sky had continued to rub herself, she meant what she said, she did not want any of this to be happening, and if anybody asked she was an unwilling participant, but while it was happening she would try to make it as pleasurable for herself as she could. Her thoughts were interrupted by Rob's hand stroking across her bottom, something close to a sensual massage.
Whack, his hand rose and came back down onto her right buttock hard. She had not even registered that he had moved his hand when the slap arrived, and she squeaked.
'I think you should count,' Rob said.
'One,' Sky said, in a voice that betrayed the shock of that first spank.
'Good,' said Rob, 'That sounds like you are remembering who is in charge here.'
'Yes sir,' Sky said, her mind more on the warmth rising in her pussy, and the tingles in her clit.
Bam, the left cheek this time, same as the right.
'Two,' Sky said more confident this time, this was more like the spanking that she wanted.
Rob's hand stayed put, this time it stroked around her warm bottom, gently rubbing across the areas he had just struck, there was no way he could see from looking, her arse was still red from yesterday's spanking. His hand moved across her pussy, the wet greasing his hand, and there was the slightest contact between her rubbing hand and his.
'See I knew you enjoyed this,' Rob said, but Sky was focused, her mind was elsewhere as the rub was bringing the climax ever closer.
The hand rose and smacked back down, then again on the other cheek before Sky had time to say anything. She moaned, a sexual moan as the fourth landed, there was a sting across her cheeks from it, and at that moment her mind had been in the right place for it to be perfect.
There was a firmer feel to Rob's rub this time, which she was sure was because of the delay, and she cleared her throat.
'Three and Four, sir,' Sky said, in more of a sexual moan than a clear voice.
Rob's fingers grazed her pussy again, but this time two fingers slipped in. The pressure of them pushing up was too much and Sky spilled over the edge and climaxed. Not a hard and mind numbing climax but it worked.
'Yes, that's good,' said Rob, clearly enjoying it.
In a quick motion the fingers withdrew, and Spanks landed across her cheeks, they prolonged the climax and the moan became deeper and the pleasure was starting to show in the moan.