I had always considered nipple rings to be ugly. Weird. Maybe even a little degrading. Until the moment I focused on the swaying movement of the gleaming pair of them attached to the woman whom my husband was fucking as he and I stared fixedly into each other's eyes, a few metres apart in our bedroom. Suddenly, in the intensity of the extraordinary moment, those metallic accoutrements on a woman I didn't know, and whose face I couldn't even see, became an intense totem of the elemental animal lust I had for him in every part of my whole physical self, and of the deep human passion that was boiling inside the pressure cooker of my mind.   

But I am getting carried away. Indeed, as I recount the story to you now, and my memories of last week flood back to me, I can feel my blood flowing faster, my clit beginning to tingle, and my nipples longing to be pierced. So, I need to pause and wind back to the beginning... 

Mike and I are in our mid-to-late 40s. On the face of it, an average suburban couple in an ordinary three-bedroom house, on a dull housing estate, in a medium-sized, non-descript town 35 miles out of London, whose two kids are now at uni and beyond. And until about five years ago, there really wasn't anything more noteworthy about us. And to nearly everyone who knows us, there still isn't. Everyone knows Jane and Mike as solid, dependable, safe... But for those last five years, our marriage and sex lives have become somewhat unconventional. And now my head is spinning with imaginative anticipation after the latest innovative moment...  

This phase of our lives started with my mind beginning to wander idly one evening five years ago. Mike and I still had sex from time to time, but it was unexciting and routine. We still had a lot of love and trust for each other, but the spontaneity, passion and wildness had gone. I wanted things to be better. I tried a couple of new lingerie sets, but not much happened. We went on a couple of romantic weekends away, but it changed nothing. I wondered whether Mike was having an affair. But I didn't think so: he was still affectionate to me, and there was no tension between us, and no unexpected absences from him. I wondered whether I should have an affair. But it seemed absurd, tiring and complicated.   

We talked about what to do to keep things going. We agreed to allow the possibility for each of us to have sex or an affair with anyone else, but with the clear intention of maintaining our own relationship. We would make this clear to any other partners too. And we would let each other know the headlines of our additional activity, though not necessarily every last detail. At first Mike threw himself at it fully. He told me he'd had sex with quite a range of women, mostly on a once-only basis: friends' wives, colleagues, even women he'd met on the commuter train home from London. Then he'd settled into a series of medium-term affairs, of which Kate was the latest. I was comfortable with all this, though it was shocking to accept at first. I preferred the approach in which it was just sex from which no emotional connections could ensue, but I could see he enjoyed the affairs too. I think he was being honest with me about it all, and that he was honest to the other women, but I couldn't be sure. But anyway, it improved him as a person in many ways.  

For my part, I took things more gently. I'd had two medium-term sex partners only. Steve was the latest who I'd been with for nearly two years. Oh, and there was a drunken moment at the office Christmas party where I'd let a 21-year-old lad fuck me across my desk. Well, I forced him really. I hadn't particularly enjoyed it. Although he had the biggest cock I've ever encountered, I could tell he had no technique, or interest in me. But generally, I was looking for sex with men who could fuck me with their minds as well as their dicks. Steve was excellent at that. We had what looked like rather ordinary sex once or twice a month, but he made the best conversation and had a gorgeous, gentle voice. He could make me wet in half a minute of him opening his mouth. I made him keep talking as he fucked me with his unremarkable dick, and I would climax in seconds of being penetrated. And I would keep cumming if he kept talking.  

Mike and I had each got comfortable with this pattern of separate arrangements over a few years. It had definitely kept us together, and improved our relationship and the sex we still had with each other a couple of times a week or so. But maybe it was now too comfortable. I felt that things with Steve were good, but I wondered if all I was ever going to do was be chat-fucked by him in his sorry little flat. The mind was ruling the body, but as I approached menopause, I wanted the body, while it still could, to rule the mind a little more.  

So now was maybe an opportunity to weave the best bits of our parallel affair worlds into something riskier and more exciting. I pondered what might work for me. I didn't want to do a threesome with Mike's girlfriend as I didn't want to touch another woman. I didn't want a threesome with Mike and Steve: the sex I had with Steve was my business and belonged in my private headspace. Mike's presence would alter it. I didn't even want Mike to watch me with Steve, let alone become involved. I finally worked out what I wanted to try. It might not work, as it would require his girlfriend, Kate, to agree. But it was worth a shout. I told Mike that I wanted to watch him have sex with Kate in front of me. In our bedroom. Across our bed. While I was staring him in the face. But that she would have to have her head covered with a hood: I didn't want to see her face as this might distract me from concentrating on Mike's experience. And there would be no touching from me. Mike was very keen but said he'd obviously have to ask Kate. The thought of it was clearly very arousing for him. He immediately ripped off my clothes, bent me over the sofa, spanked my arse harder than I can remember and fucked me hard from behind, pulling my hair and scratching my back. He hadn’t done that for many years.  

A couple of days later, Mike said that he had asked Kate. She was in agreement. Indeed, he said she had taken off her clothes, pulled out his cock, and impaled herself on it, as soon as they discussed it. It seemed like a win-win-win.  But she had set some conditions for me. If I was to insist on her being hooded, she wanted Mike to gag me, bind my wrists and tie me immobile in the corner of the room so I could not physically or verbally join in, nor masturbate, while they fucked. I thought her suggestions improved the idea even more. Mike said he also had ideas as to what he would do, but he wouldn't tell me what and said I'd have to wait to find out. He fixed a date with Kate for the evening two days later. We agreed not to have any sex until then. We were so tense and aroused for those two days. I was scared of what I had committed to, but incredibly excited about how it might feel. 

Kate was due at 8.30. A little while earlier we went up to the bedroom. Mike asked me if I was still on board with the plan. I was glad he did, but there was really no need; he could see my face was flushed, I was breathing slightly fast and was moving in a tensed fashion. I nodded. He told me to stand against the wall, looking back across to the side of the bed a couple of metres away. He kissed me affectionately. He lifted my top over my head. He stroked my arms and my sides. He told me to remove my trousers. I did, though my fingers fumbled the button as I was shaking. He kissed my tummy, moved his face close to my white knickers, inhaled my aroma, purred appreciatively, and moved his head back to stare at the oozing dampness. I could sense his heart beating fast now too and could smell his fresh sweat in the air. I had been in a sexual situation with him so many times, but this felt different. He stood up, ran his hands round my back and undid my bra, removing it quickly. He blew on to my hardening nipples. He pulled down my knickers and put them in his mouth to suck on my juices, while softly rubbing my hairless skin just above the top of the slit of my pussy. I gasped. He took my knickers from his mouth and rubbed them on my lips and nose, allowing me to smell and taste my own cunt fully, then threw them on the little pile of my clothes in the corner, just beyond my reach.   

He told me this experience was for me, for him, for us together, and also for Kate, whom he wanted to please, and that it was founded on the trust between him and me. I told him I agreed. He told me to expect him to push my boundaries. I trusted him but felt nervous, like an aroused but sexually inexperienced young woman. I reassured myself that I was merely watching the kind of things he's been doing, with my agreement, for the last few years.

This was ridiculous: how could watching him with another woman be so hot? He told me that throughout the whole process I was to look into his eyes if I could see them. I nodded. He kissed me on the lips again. Then he turned me to the side, pulled my arms together behind my back, and bound my wrists with a green cable tie. Then he turned me back to face him and pushed me right up to the wall with my bum touching it. He knelt down, kissed my left ankle, and attached to it a gym cuff with a ring on its side. He then fed a carabiner through the ring, and I was attached to the radiator pipe. I was trapped now; I couldn't move my left leg at all. It was thrilling. He told me he loved me. I did the same. Then he confirmed that I would have no voice for the next hour or two. He produced a roll of black duct tape, and, with three lengths applied carefully, sealed my mouth. I was now mute too. I could feel my pussy welling up with my own juices.   

I could see the clock. It was 8.27. Mike tapped something into his phone, and told me it was nearly time. He reminded me to stare into his face wherever possible, and left the room.   

I was left to ponder the enormity of the moment. My erogenous zones were burning, my comfort zone was nowhere nearby, and my mind was beginning to zone out into some kind of out-of-body experience. 

I heard the front door open and close downstairs. I heard Mike and a female talking briefly, but I couldn't hear what they said. Within a couple of minutes, I heard them start to climb the stairs. Mike appeared first through the doorway. Kate was close behind him, being led by him with his hand loosely round her right wrist. Of course, the most striking thing was that I couldn't see her face. Her head was covered in a faux leather hood, tied at the back, with a small hole for a mouth. Although it was hard to tell with no face, she seemed to be about my age. She was average height, similar to me, maybe slightly thicker build, with slightly larger breasts, and fuller thighs and bum. She was wearing a loose-fitting white, very short, sleeveless sundress, and tiny white socks. Her skin was a similar pale tone to mine, but slightly more tanned. I noticed a small tattoo of something like a Celtic cross at the very top of her left arm. She smelled fresh. She moved hesitantly, and her head and shoulders were hunched down slightly. I ended up trying to imagine her face, her hair, but I had nothing to go on as it was all under the hood. I told myself she was, at best, average-looking; I needed the reassurance that she wasn't beautiful. 

In an odd attempt to break the ice, Mike stared at me and calmly said that this was Kate; then he turned Kate toward me and told her I was Jane. She gave a quiet hello, and I saw her made-up lips move gently in the little mouth hole of her hood. However, since she couldn't see me, and I couldn't speak properly, it was clunky. I made a little noise of acknowledgement. I didn't like it. I didn't want anything to do with her. I wished her no ill, but right now she was simply an object for Mike's and my pleasure. I wanted to watch her, as a performer, almost non-human. I really didn't even feel comfortable with that minimal interaction, and I hoped that Mike wouldn't do any more.  

But I was fascinated by her body, her physicality, her animal nature, and the pleasure that I wanted all of them to bring Mike. And me. She and Mike stood a couple of metres away from me next to the bed. I could smell her femininity blending into the particular familiar male musky smell of Mike. I could see her chest rising and falling more rapidly as her pulse increased. I could hear her breaths increasing in speed.   

Mike confirmed to Kate that I was bound, gagged, and immobile. She nodded. They were side on to me. Mike had his arms around her, rubbing her back. He is a tall man. He moved his mouth down to engage hers. His lips touched hers. I could see she felt a frisson and responded. The kiss became quite passionate. I could hear their lips just in front of me. Mike turned his face slightly and engaged my stare. I didn't quite know what to feel; my head was spinning. His eyes told me this kiss with Kate was for me. He reached down and lifted the back of her dress, placing his hands on her buttocks. He rubbed them gently with his fingertips. I knew exactly how this felt; he had often done this to me. Kate pulled out of the kiss and gasped slightly. Mike still had my stare; his eyes glinted. Then he broke the kiss and lifted off her dress over her head. I was transfixed by her nearly naked body. Enhanced by a plain white T-shirt bra and a simple white thong, her slightly tanned flesh was tight and athletic, suggesting a good deal of gym or yoga. Her bum was slightly larger and more rounded than mine, but definitely firm. She carried no excess weight and looked good for mid-40s. I told myself I looked that good too, though I wasn't that sure.   

I could tell Mike was significantly aroused. He still had on a T-shirt and shorts, and I couldn't see his crotch, but I knew the signs in the way he moved, the rhythm of his breathing, and the little noises he began to make. I had been fucking him for nearly 25 years; I ought to know by now. He began to scratch her buttocks slowly but forcefully with his fingernails. She tensed and made a little gasp. Then he moved up and scratched her back and sides similarly. Kate was settling into it, and I could hear little moans and purrs of contentment. All the time, Mike was looking right at me from two metres away.  I held his stare. He kissed her throat and began to lick her neck with the tip of his tongue. I knew this so well and exactly how it felt. He moved his tongue tip down to the top of her breasts. Her moans increased.  

I wanted to be so close that I might sense what she was feeling, especially as I knew Mike's every move and signal. But I didn't want to touch her. Or even him. I could sense I was beginning an almost out-of-body experience. I was the viewer, watching a version of myself with Mike, and knowing exactly what it felt like: a perfectly imagined version of a reality, but somehow stronger than the reality itself because I was observing, not participating. I could accurately imagine all the non-visual sensations because I had memories of them. And now I had a better visual perspective from the observer's angle. The stimulus of seeing Mike do to her what he did to me made my mind feel things even more intensely than when he did them to me myself, because my mind was using memory and imagination to fill in the gaps in the best possible way. It was like watching a live porno of Mike and me. My mind was captivated, and it was now taking control of my body.   

Mike continued to stare into my eyes as he spoke firmly to Kate: "You are here for my pleasure. So remember that you are here to obey me, whatever I say. OK?" She managed a quiet "yes". I was a little surprised. We had never done obedience or domination routines in our sex. I hadn't known it was a thing for Mike. I began to wonder how far he would push this now, and about the possibilities beyond tonight.  

Mike's fingers pushed her bra straps off her shoulders and caressed them. He slipped his hands round and undid her bra, sliding it off. I had been excited to see her breasts, to compare them to mine. And then I saw the nipple rings. This threw me. As I said, I had never really liked them, though I knew Mike did. They were proper piercings, not just clipped on. They were small but large enough to hang and move as her breasts moved. Mike had looked at me all the time as he exposed her. He could see the shock in my face and grinned gently. He tugged slightly on them, one at a time, making Kate gasp as her blindness meant she hadn't expected it. I felt the sensation myself in my own nipples as he did it. I imagined what it would be like to experience the piercing and to have the rings in place that would constantly be rubbed by my clothing. Or by Mike. Or by Steve. My imagination was taking me to outrageous possibilities.   

Mike whispered into my ear, "Remember to enjoy seeing what you won't let me do to you..." He moved away from the side of the bed right in front of me to the foot of the bed close to the window, facing it. Then, to my even greater shock, he opened one of the curtains, keeping himself to the side of the window. "You are on display, Kate," he said calmly, all the time looking at me with authority. Kate gulped but held her ground. It was getting dark, and there was a soft light on in the bedroom. Although no one in the street had a direct sight line into our room, it was easy enough for people to see in from certain houses, and even from the street. Kate was visual prey. And I realised that this was Mike's thing. Many times over the years he had wanted me to show myself topless in the window. I had always refused. He had never forced it. The window only showed upper body, but this was still extreme. Mike was loving the power and the effect it had on me, and on Kate. I realised that any neighbours who happened to see Kate would assume it was me, because her face was invisible. And they would probably see her pierced nipples. I was horrified but also excited: if any of the neighbours thought I was an exhibitionist with pierced nipples who liked to wear a BDSM hood, they would be wrong. And if they judged me negatively for something that wasn't true, then surely it wasn't a problem for me. Indeed, it was liberating and empowering.  

All the time, Mike kept himself hidden from outside view behind the curtain. Then he carefully hunched down, still hidden, and moved behind Kate. He glanced up at me, with a look that said he knew that I knew what he was doing. He was right. I did. He was getting Kate to do something I had refused to do for years. But I don't think he realised how exciting and arousing I was finding it. I was watching a version of myself do something I had been terrified to do. I didn't know if Kate knew how exposed she was, but it didn't seem to bother her. Mike kissed her ankles and began to lick up the inside of her legs, pushing them apart. He told her to lean forward a few inches so she could press her breasts onto the glass. She did. I heard the gentle clank of the metallic nipple rings as they touched the glass, and she gasped from the cold shock to her nipples. Mike burrowed his face between her buttocks. He pulled her thong aside. I could tell he was using his strong tongue to lick her rim. She began to moan. I knew exactly how that felt, and my own rim began to tingle. He continued with his task for a while, as Kate's moaning and my rim tingling intensified.   

Then Mike moved himself round between Kate and the wall beneath the window. He began to use his oral and lingual skills on her pussy through her thong. The combination of kissing, licking and sucking was very familiar to me. Mike kept glancing up at me from his intense, skilful efforts. This sent shockwaves through me every time. Kate was struggling to stay in control. Mike paused. He moved her close to where I was standing. I could smell her pussy and her sweat and hear her panting. He crouched between us, the back of his head just beyond my pussy. I wanted to reach out and touch him, but I was restrained, of course. Mike rubbed the outside of Kate's thighs, put his fingers on the waistband of her thong, and swiftly pulled it down. He moved his head to the side so I could look at it properly. She had a little thin trimmed Brazilian strip of hair. Her labia were tidy for her age, but slightly more protruding than mine. Mike quickly got back to work on it with his mouth. Her moaning intensified further. I longed to be able to touch myself, and the impossibility of self-relief just made the feelings stronger. Mike's tongue was fully concentrated on her clit. I could see how swollen she had got. The redness in her chest and neck was strong. I knew she needed to cum. So did I, though not quite so much. She was making odd little whimpers, and finally cracked. "Mike, please make me cum," she pleaded.   

Mike froze. Then he sharply moved away from licking her. He stood up and said firmly: "Kate, you know that I am in control, and that I treat you with respect, but that you never ask for things." She nodded. "I will punish you now." He looked sternly at me. I had never seen him like this before. It was an unexpected plot development in my personal live porno show. Then he pulled a chair close to the window and told Kate to bend over it. She complied, pushing her sexy arse into the air. Mike stood over her, again staring straight at me. He was apparently contemplating what to do. Then very suddenly and with force he slapped his hand across her buttocks. She squawked. I really didn't know what to make of this. I had never seen that physically aggressive side to Mike. But it was hot. I wanted to see more, and to experience more. Kate looked subdued but was still panting from the stimulation.  

Mike told her that there would be one more piece of punishment: he told her to stand on the chair to display her reddening arse and her pussy. This was wild. "Yes, Mike," Kate said. "I am sorry for my mistake. I am happy to comply." I sensed that the slap had removed her immediate need to cum. Mike helped her onto the chair and made her present her bum to the window. I wondered who was watching, with the assumption that it was my arse. Then he turned her so that her trimmed pussy was on display through the window. All the while Mike remained crouched and invisible to the outside and kept looking at me whenever possible. I was enjoying the fact that some neighbours would believe they had seen my pussy. Perhaps some of them would ask to join in next time.  

Mike left Kate up there for a couple of minutes. He stood right in front of me, a few centimetres away, as he removed his T-shirt and boxers. I enjoyed the sight of his torso, pert nipples, and stiff cock, and the overwhelming power of his very male aroma. I wanted to grab him and have him thrust into me, but I could not. He thanked Kate for accepting her punishment. He helped her down and closed the curtains. He laid her onto the bed, side on to me, with her legs open and hanging down from the knees. This was a favourite position for us. And probably for them. Turning to look at me, he told her that he would make her cum. She nodded and giggled. I was increasingly less able to hold it together; I wanted to scream with lust for Mike, to grab him and be consumed from the inside by his pounding masculinity, and from the outside by his powerful hands. But I was disabled in all ways. All I had was my senses and my mind. But they were making things worse; everything was in my mind with no chance of physical relief.    

Mike moved his face towards her pussy. He began to blow on it in little bursts, tickling her labia with the moving air. Then he gently rubbed her swollen lips and pulled them open at the top, and began to do the same to her clit. I knew exactly what Mike was doing to her. My mind and body were reliving many similar experiences. It was harder and harder to stay standing. I could see how she was now fully aroused and feeling it. I knew I couldn't cum, but I wanted her to, to offer some kind of relief. Mike moved in closer and was directly flicking her clit with his tongue, with a slightly irregular rhythm, to keep her guessing. His arms now stretched up her so his fingers could flick her nipples with similar unpredictability. He glanced at me frequently. She was building to orgasm and making little whimpers.   

Then Mike paused. He stood up, looked sternly at me, and walked to the drawer at the top of the bed. Kate was struggling but clearly now scared to beg again. Mike took something from the drawer and went back to the bottom of the bed. He crouched, and I saw gleaming in his right hand was my favourite, shiny bullet. Wow! I was not sure I liked this. This was my personal vibrator; Mike and I didn't use it together. He had invaded my personal space to pleasure his girlfriend right in front of me. He turned it on for a couple of seconds to buzz. The noise alone gave me the most amazing sensation right in the top of my clit where it would be touched by the pointy end. I sensed Kate could hear it too. But Mike was teasing her by just making the noise near her a few times, and not actually touching her. Then he crouched between her legs and touched the tip on her labia. She shuddered. He ran it up and down. Then the other side. I could tell she wanted to ask him to make her climax, but she was prohibited. She began to pull gently at her nipple rings. Mike told her to stop. She did. Then he paused the bullet, holding the silent device near her clit. Then he turned it on and hovered it over her. She was so close. He applied the buzzing device to her clit, in short, intense bursts. She was close now, right on the edge, a second or two away. I felt the orgasm in her, ready to explode. Almost any further contact would surely have brought her off.   

Mike looked at me intently. He did nothing. I realised that he was intentionally edging her. He had tried to do it to me in the past, but I had always refused, either slapping him in frustration, or bringing myself off. He had given up trying a long time ago. And so here was one more thing that he was doing to Kate that I wouldn't let him do. His physical game on her was also a mind game on me.   

He stroked her thighs affectionately. She had come down slightly, but was still close. He moved his fingertips closer to her pussy. He began to tap it near the top, close to her clit, with unpredictable patterns. She was closer again. He opened her up to expose her clit, paused, and then suddenly tapped it with the fingertip. She gasped. He did it twice more. I could feel her building to orgasm once again. He touched her clit again and kept moving in circular motion for 20 or 30 seconds as she began to thrash and arch, apparently close to orgasm. Then suddenly he withdrew his finger and stepped back. She stopped breathing for a short while as her body didn't seem to know what to do. Her orgasm was stuck just beneath the surface; on the edge of exploding.   

Mike stared into my eyes, letting me know he loved the control. I felt sorry for her, but my overriding feeling was stimulation and awe for Mike. I wanted him to take me over completely, to do anything he wanted, and to make me cum. His gaze was so powerful. I kept glancing at his cock. I needed it so much, but I knew it was not for me just now. But I had a wonderful sense of empowered fulfilment, knowing that it fitted perfectly in my cunt as its home, wherever else it roamed from time to time, and that it belonged to me forever. And that that fundamental physical fit was part of what bound Mine and me together at the deepest emotional level. I didn't care where this cock went off to play, or what it did, because it always came home in the end. This realisation was liberating.

Mike seemed to know what I was thinking. He nodded in agreement. He spoke clearly to Kate without looking away from me. "Do you want to cum, Kate?"

"Yes, please," she replied with the little breath she had left, but conveying a sense of contentment.

I envisaged the expression she would be wearing inside the hood: totally exhausted, toyed with, almost broken but desperate for ecstatic release. I felt a reduced version of the same. But I knew Mike's cock was always mine and that comfort displaced some of the anguish of pent-up orgasm.  

Mike pulled Kate's legs quite roughly, turning her through ninety degrees. Still on her back, her head was now closest to me. I could hear her breathing more strongly and smell her sweat. Mike mounted the bed on the other side, still looking at me. Kneeling, he pushed Kate away slightly, causing her head to fall back gently over the edge, closer to me. Had she been able to see, she would have been staring right at my pussy, upside down.   

I watched Mike quickly manoeuvre Kate right where he needed her. I knew this position so well, arms flat at her sides, knees bent up, head tilted back to enhance orgasm from the hard fucking that Mike was about to administer. Mike rubbed his super hard cock as his eyes bored into me. He continued the stare as he slid his cock into her cunt. She gasped. She was closer still to orgasm. Mike lifted her legs as he thrust deep into her. Kate was loving it, ratcheting back up to the edge of climax very quickly as her moaning deepened, in time with each of Mike's impressive thrusts. I could feel the sensation of Mike's cock in its proper home inside my cunt as it was having a little day out deep in Kate's cunt. I wondered how it felt for Mike to be inside her. I think he knew that he fitted into me better. And that he was just putting on a performance for me by fucking Kate in front of me.  

I drifted back to concentrate on the detail of Mike fucking Kate. That was when I had the moment of being transfixed by the nipple rings, as the light caught one of them and sparkled at me. I realised how powerful a symbol they were of the physicality of sex and of the desire I felt for Mike to get from me everything that he was getting from Kate. And more. This was a physical lust from me to have him inside me, on me, around me, touching everywhere he could, because I had an emotional lust for him. My mind and body were driving each other. Mike and I belonged to each other at a level no one else would ever endanger. 

Kate was so close to cumming. I could see her writhing and panting so hard. She started to move her hand to rub her clit to climax. Mike grabbed it and put it back down on the bed. "No," he told her. He tweaked her left nipple ring as he continued to thrust. She shrieked. She was so desperate to cum. I wanted to be possessed in the same way, but realised I was already possessed by Mike by being tied up and made to watch. It was so amazing.  

Mike pulled his cock out and told her she would have to wait still. She deflated, but remained on the edge. All this time Mike's eyes were on mine, even as he pushed a pillow under her bum to raise it. I knew what was coming next. I had always resisted Mike's demands to fuck my arse. I considered it demeaning, dirty and almost gay. Now he was going to show me what I was missing.   

He produced some lube and daubed it round Kate's rim and on to his considerable cock. He held the backs of her knees and pushed her bent legs further back towards her chest, raising her bum further. Then, with his cock nearly vertical, pointing down, he manoeuvred to enter her anally. He knew what he was doing. So did she, it seemed, despite being so breathless, hot, sweaty and debilitated by not being allowed to climax. I guessed they had done this before. Probably many times. Mike was now putting on a show for me about how good it was to fuck someone's arse, when he hadn't ever had mine, and how good he was at it. I had never had anything penetrate my anus, and so I didn't know what it might feel like, but nevertheless, I could feel my mind imagining the sensations in that channel, next to the tunnel of my cunt that was already on fire. It felt disgustingly animal. I watched Mike push his cock slowly into her. He continued to stare into my eyes as he did. There was no difficulty in entering. Then he pulled back and made a short jab with his cock into the depth of her rectum. She shrieked. He pulled back up and did two more stabs in quick succession. The explosive fire in her was there. She panted faster. Her chest and breasts were amazingly red. I felt she couldn't last much longer. Mike stabbed a couple more times. I was so impressed by his technique and his physicality. She was definitely at the edge of orgasm, the primordial moment, the initial singularity before the big bang.  

Mike pushed himself up by pressing her bent legs further down, poised to stab her arse one more time. He stared deep at me and pulled a face of aggressive intent. Then he stabbed again. As he reached full depth, Kate exploded. All the nerve endings where she was being fucked sent mad signals to her brain and were intensified by the blood flowing into her tilted back head. She emitted a long, guttural howl like a goat that had been cut open with a machete. Right in front of me. I shuddered from the noise, and marvelled at the intensity of sensation in a small human being in my presence. She was shaking and her limbs vibrating as Mike began to thrust slightly faster, still stabbing into her arse with his cock, and into my eyes with his gaze. Kate was still all over the place; arching, shaking, moaning, shrieking. I couldn't work out if it were one big orgasm or a series of multiple ones. I didn't care; I was shuddering myself and could feel my knees begin to buckle. Mike was getting faster and faster with his thrusts and was panting and sweating and beginning to make grunting noises, but still he stared straight at me. This phase carried on for maybe three minutes until Kate began to calm down a bit, as Mike got faster. I knew he was about to cum; I could see it on his face and hear it in his breathing. Even though I was a little further away than normal, I was so familiar with it; I'd been fucked by him many thousands of times over the years. Kate was now very passive as Mike pushed her legs even further up over her face. I even wondered if she lost consciousness for a moment or two. 

Mike was beginning to emit his telltale ejaculation grunts as his breathing stuttered and his face contorted. He roared as he shot his cum right up her arse, in several bursts over twenty seconds or so. I always loved the sensation of cum exploding into my cunt, and I tried hard to imagine how it would feel in my arse. I stared deep into Mike's eyes as he squinted with the ecstasy of his climax. I felt such a connection to him and was so proud of his sexual capability. I felt that all of this performative sex with Kate was for my benefit and to turn me on. It certainly had, though I had no idea when I would get any relief.  

Mike pulled his cock out of Kate's arse. I could see the light glistening off the lube and sweat on it. I wanted to embrace him, to touch him, to taste him, to let him consume me with his masculinity. But I remained out of the game, throbbing in all the essential places, my head burling, my legs shaking, and my imagination enabled like I was a teenager. Mike lowered Kate's legs. She was breathing more slowly now and seemed completely spent. He climbed off the bed, knelt by the side of the bed staring into her pussy, and pulled her towards him by her ankles. He looked at me with serious intent. Then he moved his face in towards her pussy and arsehole and pushed his lips towards her. I couldn't see properly what he was doing, but suddenly I realised: he was sucking his own cum from her arse. He carried on for some time. Then he stood up, and lay face down on top of her. She was clearly knackered and passive. He engaged in a long kiss with her, and I realised that he was transferring his own cum into her mouth. After a short while, he stood up again and told Kate that her role for the evening was finished and that it was time to leave. He helped her up. I looked in awe at both of them: Mike, such a strong and sexual physical specimen, and Kate as a beautiful, sexual woman who had gone beyond any reasonable limit right in front of me with a fantastic performance. He ushered her to the door with his arm round her shoulder tenderly, following just behind her. As he passed me, he put his finger in his mouth, covered it in cum, and wiped it purposely on my cheeks. "Don't go anywhere," he said, with no sense of irony. 

That was it. I could smell Mike’s fresh cum and what must have been Kate’s arse on my cheeks, right next to my nose. So many senses aroused. I heard them go downstairs. I paused to collect my thoughts, though still discomforted by my being restrained. I wondered what this all meant for me, for Mike and me, and what might happen next; even in the next few minutes, let alone weeks or months. My mind was blown. My body had not been, but needed it. I was in a dwam, as my old Scottish granny would have said. After a couple of minutes I heard the front door open and close. I didn't even know if Mike was still in the house and couldn't shout to find out. I was still tied up and hoped that Mike would come to relieve me soon, though I began to worry that leaving me like this for a while might be the next chapter of his playbook.  

To be continued, in all likelihood...