Warning: This story contains a lot of different kinks and is not meant to be read unless you are into them.

The following fetishes/kinks will be included: Size difference, foot fetish, ass worship, humiliation, smells, tastes, abuse, pain play, role play, dubcon, non-con, toilet play, fart fetish, swinger, cuckquean, cuckold, cock vore, anal vore, unbirth

Interactions: M/f, M/m, F/m, F/f, MF/m, MF/f, MF/mf

Size Swinger Chapter 1: A malfunction and its consequences

“Let’s begin with introductions. I am Mike and this is my toy Sarah.” My boyfriends voice thundered from above, one finger pointing at the tiny, naked woman on the table, me. My current size, about 15cm. His size was 1.82m.

“Greetings Mike” A tall woman with long, curled red hair, in a green dress with a very inviting decollete. “You may call me Natasha.” With a very smooth and provocative move of her hand, she lifted her dress and revealed a tiny figure bound to her leg. “And this is my hubby Nikolas, though I call him most of the time just servant.”

The couples met via a fetish site, saw that they have certain similar kinks and wanted to explore more. With the new size changer apps which allowed the shrunken one to be a lot more durable and have a safe word which will create an alert on the app, allowing an emergency to unshrink or as a simple show of discomfort for certain situation. At least that is how we have used it until now. When we explored certain aspects in our relationship, this safe word became quite useful as it is difficult for the tiny one to interact with the big one. Another useful aspect of the app was the ability to change the size at any point. The limits were between 0.5cm to original size.

Mike knew of my cuckquean fetish, but until now we never dared to bring in another party. That was until we met them. We were a female sub and a dominant male, Natasha and Nikolas were the exact opposite of us. We agreed to have them over during the weekend and have a hot an adventurous time.

“Shall we let the toys meet each other as well?” Mike suggested. “They can get to know each other while massaging our feet. That gives us time to…” her hand wandered over Mikes chest. “Warm up as well. Besides my boot make me sweat a lot and Sarah needs to become familiar with my scent.” Mike grinned, he loved some hot lesbian action and we both shared our foot fetish. He picked me up, gently with two fingers and took me to the living room, putting me there on the table and sitting himself on the couch. Natasha followed him and put her tiny way rougher on to the table. She dropped him from a few centimeters height, which must still have felt like a few meters. He was smaller than I was. I think he was about 2 or 3cm. It was funny being bigger than someone else while being shrunken. I went on my knees and held out a hand to help him stand up. He was covered in sweat; his black hair was wet and dripping. He needed a moment then he looked up and grabbed my hand, well a finger in order to stand up. I couldn’t help but notice his erect penis but made no comment. “Hello, I am Nikolas.” He waved up to me. In an attempt to not sound too loud to him, I responded: “I am Sarah.” Before we could say anything else, Natashas feet let the table tremble.

<an image to help visualization: [Natashas feet](https://footfetish.pw/uploads/posts/2019-09/medium/1569050212_scarlett039s-fetish-fantasies-scarlett039s-dirty-soles.jpg) \>

A heat and odor wave hit me, so strong, my body gave in for a moment. Her sweat smell was so intense as if she had been working out for a day and did not wash her feet afterwards. There was so much dirt on them, of which I was sure I will have to clean sooner or later. Well I can not deny that I love smelly and dirty feet, but at this size… well it was a lot to take in. Mikes face suggested that he could smell them too, but his obvious boner beneath the jeans told me that he wanted more.

“Toy! You may now begin to massage them. Mike, darling, you can put up yours as well, my servant will take care of them. I think I will adjust his size to keep up with the task.” With these words she played a bit on her app and Nikolas grew to 25cm. I hadn’t much time to admire the now bigger man as Mike put his meaty feet next to Natashas.

<an image to help visualization: [Mikes feet](https://www.shutterstock.com/shutterstock/photos/1806065965/display_1500/stock-photo-closeup-view-of-bottom-side-of-a-mans-foot-1806065965.jpg) \>

Usually Mikes feet had an aroma that enveloped me, but Natashas heavy sweat was simply stronger. She was all I could smell. As soon as Mikes feet touched the table, Nikolas ran towards them and began massaging them with his hands. I observed him, how eager he was, his boner still hard and now at this size revealing that is was in terms of proportions relative big. How could such a hung man want to be cucked? Well, I am the last one to judge. Then without warning, a hot and wet wall hit me, throwing me back. Disoriented I needed a moment to realize that Natasha had kicked me, leaving a slight cover of sweat and grim on my body. “Toy, did I not tell you to start massaging my feet? Darling, shrink her one more cm for that.” Mike obeyed without hesitation. 1cm might not be a lot for a human, but at my size it did make a certain difference. Of course, I did not want to displease my mistress, so I ran towards her soles, throwing my whole body at it. I knew Mike loved it when I was covered in filth, and to be honest, me too, so I put up a good show. Natashas feet might be more than I was used to, but I had very low limits and was willing to please. My work and that of Nikolas as well remained uncommented for the first five minutes, until Mike said: “I must say, I am surprised how willing your… servant is. I do not mind other men, but actually rubbing their feet while having such a boner.” Natasha smiled: “We have discovered a lot of our kinks since we used the size changer. Even more, we learned that we like some things we put aside as taboo at the beginning. I never expected to like pissing on a man. Or being fucked raw by a stranger. Other kinks we have discovered by accident. My servant had for example once the pleasure of fucking me anally while being shrunk to doll size and a second before he came, I had to fart.” “And he enjoyed that?” Mike asked surprised. “Well, though the smell bothered him, it was the situation as whole that turned him on. You had your toy rim you already when she was shrunk right?” “Well yes, but for the rimming I never shrunk her more than half of her size, I did not want the smell or taste to become too much for her.” “That’s why she has a safe word. She can always give you a signal when it is too much. You know what, we said we would do some exploring this weekend. How about we take some of your taboos to see if you or your toy really don’ t like it. We can still stop at any moment.” Natashas hand were now all over Mike, opening his shirt, unbuttoning his pants, caressing his massive cock, at least from my perspective. “You definitely know how to persuade a man. But we should ask Sarah as well. Just to be sure.” “Indeed, we should, but first let’s check how well they have performed.” Mike looked confused at her. “Well to a good massage belongs a cleaning service as well, don’t you agree?” What did she mean with cleaning? She ordered me to massage, not to clean. With a quick look at Nikolas, I realized my mistake. He was licking Mikes soles as well, he knew what his mistress was expecting. Natasha lifted a foot and turned it towards herself. “That does not look clean. It like she didn’t even try.” She held her foot towards Mikes face, who in return began greedily sniffing her smell. “Why don’ t you show her how to do it properly?” Natasha did not push her foot in Mikes face, but went so close, that not even I in my diminished form could fit between them. Mike hesitated for a moment, then began to lick her right foot, over the length of her whole sole. “See servant, big boys can lick my feet whenever they want.” Natasha spoke with Niklas, who look quite envious of Mike, which did not stop him from jerking off to the scene in front of him. Then Natasha pulled back her foot and looked at its sole. “Oh my, nearly perfect. You just missed one spot.” And with that Natasha showed off her flexibility and sucked on her toes while looking Mike directly into his eyes. “Now toy,” She hovered her salvia dripping foot over me. “That is what I expect from you.” I could only watch in awe at her sole. “It seems she needs a closer inspection.” Natasha commented on my paralyzed state. SMACK! Natasha dropped her sole on me, burying me underneath. I tried to move but to no avail. All I could feel was her flesh, all I could smell was her sweat, all I could taste was the mixed salvia and dirt. “Fuck, what are you doing? Is she alright?” Mike jumped up, seriously worrying about me. Natasha used, the opportunity and pulled down his pants and told him: “Don’ t worry, the tinies are way more resistant than you think. I could even jump on her without her having even a bruise.” That was indeed true, though that did not mean that I could not feel pain. Natasha began rubbing her foot up and down on me and it felt as if I were burning from the friction and the heat of her sole. She finally lifted her foot, and I remained there laying and feeling betrayed… not by Mike, but my body for being aroused. Mike looked at me, under tension, until I stood up. “See, everything is fine. Grow her a bit, lets say… to 40cm? Yes. I want to give her a small reward.” Mike obeyed once more without hesitation. I grew while still recovering my breath. This was a different experience. Natasha grabbed me by the waste and put me over her legs like a child that should receive a spanking. Was this the reward she had in mind? I did not dare to move, but I could not suppress a scream when two fingers pulled my legs apart. “See this? Your toy is wet like a bitch in heat.” Mike, relieved that I was fine, laughed and said: “You are right, well then continue, while I enjoy the show and the massage, right servant?” Niklas eagerly continued and Mike felt a bit confused as he felt the tiny man’s boner, but also weirdly aroused. “Very good, observe and learn.” Before I could protest, I felt Natashas finger intruding in my small pussy. It came unexpectedly, so it was good that I was already wet. She managed to get half her finger in before hitting my cervix. It hurt like hell and so of course I screamed, but for Natasha, this was but an invitation. Her finger retreated just to come back. She repeated this, with increasing speed. The borders between pain and pleasure began to merge. I would come, I was so close… then nothing. Natasha just pulled out and left my womanhood with an all-consuming desire back. “More, more!” I screamed. “Na, don’t get greedy here! First let us speak about the taboos. You have heard what I was speaking about with Mike? Pushing your limits?” My brain had been taken over by my animalistic hunger. “Yes, yes, I have heard everything. Do as you wish, just let me cum, please. PLEASE!” I tried to hump Natashas leg, all just to satisfy my need. Mike could not believe it. I had actually agreed to this? He knew a few things he definitely wanted to try and now he had my permission. This was his one chance. “Perfect.” Natasha threw me on the table, put her left foot up and commanded: “Well my other foot still needs cleaning! Lick it clean! And don’t you dare to touch yourself. Or I will make sure your slutty hole will be closed forever. And Mike, she needs to be put back to size, minus a few extra cm for behaving like a slut.” Mikes phone had problems keeping up wit Mikes fast input. I quickly changed to 10cm, Nikolas, Mikes feet, and Natashas feet all towered over me again. Nevertheless, I quickly crawled to Natashas dirty sole and began licking it. The salty taste dried out my mouth with only one lick, but I could not stop. She had broken me with no more than a finger.

With me put in place, Natasha now looked at her servant. “Tell me Mike. Shall we reward him as well. Does he deserve it?” Mike was unsure. Did she expect him to reward Niklas? He has never played in that way with a man. Well, there is a first time for everything. He grabbed the tiny one with his toes around his head and brought him in between him and Natasha. “How about we do something like you with Sarah?” “You want to finger fuck him?” “Me? I thought you would.” “No, you have to expand your horizon as well. Besides, I know that this is one of his limits.” “So I should not do it?” “No, we already agreed to at least try our taboos before coming here.” Mike put him in a similar position as I was. Mike was already putting his finger on Nikolas backside as Natasha interrupted him: “First we need to increase his size and you will need some lube, after all his hole is not so…” She looks at me. “Self-Lubricant than your toys.” She grew Nikolas to 40cm then put Mikes finger in her mouth, licking it for a while the putting it back. “Go ahead.” Mike began pushing gently, but quickly applied more pressure in order to break through the tiny mans resistance. Then not without a scream from the tiny man, Mikes finger rushed in. Mike imitated Natashas speed cycle, but suddenly Natasha said: “Stop.” With a disappointed look on her phone, she continued: “He used the safe word.” “Well at least we know that it works.” Mike pulled out without much care, making Nikolas scream again. Natasha Began tipping on their phone then with a few more settings changes, Nikolas shrunk down to 5cm. Natasha took him out of Mikes hand and held him over her discarded boots. “Recover in there until I want to play with you again. I need a real man now.” She dropped him and began to undress. I wasn’t able to finish cleaning her foot, so I knew I had to expect another punishment, yet I yearned for it. “Darling, turn your toy very small, she might be in the way otherwise.” Mike quickly tapped on his phone, changing my size to 4cm. Natasha, naked now, grabbed me from the table, and held me in front of her face. “Listen toy, I am not patient. You will now worship my asshole while Mike will fuck me like no one else. If you don’t behave, I will shove you up my ass.” She lay on the couch the longways, her legs spread and held me in her closed fist. Then without warning she rammed my head in her slit, not deep, but enough to cover my whole head with the slime of her lust. “I hope you like my taste. If not, well it is only getting worse.” And with those words my face was forced against her anus. Her definitely unclean, stinking asshole. The smell alone burnt my nose hair. I was on the brink of saying the safe word, but then I held back, I needed to stay silent for Mike and it did not help that my own lust was still present and hot running as before. His lust was physically feelable. Tears ran down my face as I licked the brown twitching star. Then a shadow above my head. Mike loved seeing me eating out another’s woman asshole. And he wanted to fuck that woman, preferable in her ass, but he did not want to push me inside her, so choose her aroused vagina instead. She pulled him in, her legs wrapped around him. “Fuck me good and I may let you cum on my feet. Then your toy can clean them.” Mike was now completely trapped in his sex drive. His massive dick penetrated Natasha, her juices splashing around, covering more of me. Mikes movement became faster and faster, his calls crashed into my back, flinging me against her backdoor. I closed my eyes and tried to crawl away when Natasha screamed: “Finger my ass, be rough.” Mike more than happy to oblige, already forgotten about my position, rammed two fingers against Natashas asshole. At least he thought that. His finger hit my head, inserting it with a mighty thrust. I had no chance to react, as Natashas greedy anus sucked the rest of my body part by part in it as well. First, I saw nothing, but a massive stench stroke me down. I felt like vomiting, but I couldn’t. Too much, the shaking, the assault on all of my senses. Mikes violent fingering pushed me even deeper. I tried to scream, but a foul fluid infiltrated my mouth. This was too much. I screamed out: “Ananas!” Our safe word, my rescue. I waited for the giant couple to stop and save me, to escape from this filthy hell. Nothing happened, well no in fact a lot happened. Their sex became rougher and faster. Their moans and screams were trembling my world, each thrust throwing me off balance again. I screamed my safe word again and again, until Natashas body rose high up, throwing me a last time deep inside. I could feel something slimy engulfing my body, but I preferred not to think about what it was. A last time I muttered my safe word, before my legs completely gave in.

Unaware of what happened to me or in what kind of situation I was, Mike and Natasha recovered from their short love act. “Now we know that we are compatible.” Natasha poured. “Shall we make our toys mate as well?” Mike asked. “First comes clean up duty. Since you did well, you won’t need to do it. But I have someone else for that.” She grabbed in her boot and pulled out Nikolas. So, my little cucki, you know what you have to do. Without further ado she inserted him in her freshly fucked pussy. “Wow, does he like that as well? I mean to be in your cum filled hole?” “Oh he loves it, fresh cum, hot juices. He wants to be inserted in your dick once as well, to be cum inside me, shot deep inside.” Mike did not know that Natasha was lying. Tasting another’s man cum was on the list of things Nikolas hated, but Natasha made it clear to him, that he had to follow her orders, he belonged to her. He was only allowed to use the safe word, if the pain was too great. For now, he had to crawl through the pulsating pink mass that was covered in the white goo of her recent lover and eat it up. Mike needed a minute to catch his breath, then he sat next to Natasha and looked around. “Where is Sarah? Are we sitting on her?” He stood up and looked beneath him. “I will just grow her a bit to see where she is.” As he did so, Natasha began moaning. “Stop, I know where she is.” Mike looked at her in surprise. “Oh no, is she inside?” She must hate it thought Mike. “Don’t worry about her. True, I have not expected any anal visitors today, so it is a bit more… dirty inside, but if she would not have liked it, she could have used the safe word.” Indeed, Mike saw and heard no alert on his app. “So Sarah likes it? I was sure she hated toilet play.” “Well perhaps she just likes it in me.” Mikes cock grew hard again. “Please let me fuck your ass while she is inside.” Natasha laughed, but turned around and presented her ass, spreading her cheeks. Mike liked over the backdoor, French kissing it, then spreading it open with two fingers. I saw light suddenly filling the colon in which I was trapped. “Sarah you dirty little girl. I did not think that you would go so far for us. You have not even used our safe words once so far.” Oh no, he had not received an alarm. That is why he ignored me and now I cannot go back. If I were able to tell him now, he would never be able to forgive himself. “So here is the deal, Sarah. If you don’t want me to fuck you even deeper in this beauty’s booty, use the safe word now. Otherwise, I will only see you again after she will shit you out.” He can’t be serious. “Ananas, ANANAS, ANANAS!” Mike waited for a few seconds, no alarm. “That dirty, little toy. We should have done that way earlier.” The next thing I saw was Mike shaft entering, all light consuming. Like with his finger before, I could not resist nor stop it. Though this time was worse. His cock hit me in my face, throwing me backwards. No time to stand up as the head rammed me again. Over and over, this time it was different then when he had shrunken me to 0.5cm and put me at the end of a fleshlight. That time he tried to be gentle, not to hurt me too much. This time he just followed his lust, his desire to fuck hard and fast. My body and mind were already broken as Mike finally came, spraying his white cum all over me and the shit-stains around me. Finally, a taste that would cover the feces in my mouth. Tasting him returned my lust and my hands began finishing what Natasha began. One finger, two finger, three finger, I nearly had my whole hand in my pussy when my orgasm reached me, made me faint.

When I woke up again, I did not know how long I had been trapped in here. But I had at least to try to escape. I ran, crawled through mud mix of cum and shit in the direction I guessed the exit. After an uncertain amount of time, I ended up before a huge… metal wall? Had Natasha an implant and I went in the wrong direction? No, wait, I must gone the right way, behind me were just the logs of…, well the logs. I took me quite a while before I understood. This was a buttplug, but it was out of proportion. That thing was at least three times my size. They shrank me again.

Outside of my hell, Mike and Natasha had made themselves a quiet movie night, where they planned on how to proceed with their oh so willing cucks.

To be continued…