Part Six.
Conclusion. Olivia plans her future
We decided to stay another night before leaving in the morning. Les had suggested that mum should allow her ass to recover from its caning before the drive home, and mine from the stretching it had just endured.
It was Petra who had made the request to Les. 'I heard you tell Olivia that you would teach her anus to ride your strap-on, Les, if she took her caning well, and I think she has just shown us all how well she can submit to that, knowing what was in store for her if she did. Would you mind terribly if I were the one to use the strap-on? I think it is time to turn Olivia into my own obedient pet.'
'What a lovely idea, Petra.' agreed Les. 'You already know what it feels like yourself, having allowed me to penetrate your ass over the past year. Yes, I'm sure Olivia would like that too, wouldn't you, Olivia?' Les asked me with an encouraging smile.
I wasn't so sure about this at first. It was a bit unexpected, but the caning had made me incredibly horny and I was still enjoying the high. The more I thought about it, the more I realized that I was indeed attracted to Petra, not just for our bedroom pleasures, but I had been enjoying her taking the dominant role through the holiday, thinking up new ways to make me suffer, to submit to pain and humiliation.
'Yes, Mistress Les. Thank you. I would like to offer myself to Petra, like I did to you at the beginning of my stay here, and to call her Mistress when we are in the Punishment Chamber. So, please Mistress Petra, would you take your strap-on dildo and fuck my anus with it, but please use a lot of lube, because, as you know, apart from Les's finger just now, I have never had anything penetrate me there before.'
Petra made me stand naked, facing her as she attached a leather collar around my neck and cuffs to wrists and ankles. She then led me to the sex sling which was suspended from a heavy wooden ceiling beam. She fitted me into this, clipping my ankles to the support chains at the lower end of the sling and my wrists to the other chains, with me reclining on my back. Then, with an electric ratchet pulley, she raised me to the perfect height to give her access to my ass which, with my ankles being pulled wide apart was unobstructed and ready for her to ravage me.
The three other ladies crowded round to get a closer view of my flaring, open cunt and my exposed anus. I could feel liquid burbling up in my pussy and to prove the point, Les reached out and ran her fingers round the edges of my pussy lips.
'Oh, she is enjoying this!' she announced, and dipped her finger deep into my pussy, stimulating me to greater horniness before withdrawing her digit. Bringing it to my lips, she smeared my juices onto them like lipstick. I couldn't help myself. I licked my lips and tasted my pussy. Such an act of subjugation, witnessed by this group of admiring, appreciative women turned me on hugely and I asked Les for more. But she refused, telling me not to be greedy.
Petra had been affixing the straps around herself and selecting a suitably small training dildo to put in the fitting. Lifting a tube of lube, she now approached me with her black rubber dick and a haughty look on her face.
'Slave Olivia. What will you beg your mistress to do?' she demanded.
I gazed up at her, firm in my bondage and my resolution to take the treatment I was in for without complaint.
'Mistress Petra, ever since I met you, I have been a little in awe of you, and I have grown to love you and wish to serve as your slave during our games here in the Punishment Chamber. I have submitted to this bondage and am suspended here, exposed, open and willing because I want you to push your dildo deep into my ass. Please teach me to accept your domination over me, starting by fucking my asshole.'
The outcome of this was that she wasn't happy with the small dildo she had chosen, as it slipped past my ring and into my ass too easily. The lube had helped a lot of course, but after a few thrusts she declared that I wasn't being tested adequately. She replaced it with a new dildo, this one the size of a large penis I was assured, and I struggled at first to accommodate it. My anus resisted the invasion and Les intervened, telling me to relax and to push back gently. Finally, the head of the dildo opened my butthole and as it stretched, and Petra gently rocked back and forth, I gradually opened up and took the full device into my ass, gurgling and screaming a little as I felt it enter, inch by inch until her thighs were pushing against my ass cheeks. I was deeply plugged, and stretched to my limits but soon the muscle learned to accept the invader and Petra owned my ass. She told me so.