u/froshcube456

Links to previous parts:
Part 1
Part 2
Part 3

The news of my pregnancy made me angry more than anything. I was basically raped by a dog and now I had to carry his children. A doctor’s visit led me to the conclusion that the babies did not shift with me and that they would be puppies and not humans. I relief flooded me as the implications of this hit. It would be a shorter gestation process, they wouldn’t be as painful to produce since they are small, it wouldn’t do as much permanent damage to my body because of the size, and I don’t know if I could take care of a human child at this stage of life.

I had no where else to go, I was lost and harboring a medical anomaly. The doctor said to just treat it like a regular pregnancy; but how could I when I couldn’t tell my friends and family that I fucked a dog. Thats what led me to the door of my ex. Its already been a month so I would be halfway through pregnancy if we were counting just pure dog gestation. However, the doc said that my human anatomy would slow things down due to my human inability to “rush things”. She estimated about 4 months total.

My ex opened the door and heard me out. He and his fiancé were the ones to see me as a dog and turn ravenous for Blue so surely they would understand my situation. My ex said he would talk to his partner and get back to me. Im not sure what I was looking for but whatever it was, he understood. He always did. It wasnt until a week past that time when he came over to my place, Blue on a leash next to him.

I was furious at him. He brought the one animal that keeps me up at night? The one being that has moral ambiguity on who raped who? The literal father of my litter of puppies. Im glad he was there but I would have rather the queen bitch he calls a partner show up here alone and tell me to fuck off. Blue looked erratic, immediately noticing I was harboring his puppies. My ex stayed calm and tried to talk to me why he couldnt help all while Blue became rock hard and started whimpering. My eyes feeling like they had gained full autonomy as they kept finding his red rocket as my ex droned on. The questions and concerns I had about Blue being here melted into relief. It then turned back to pain as I realized what I wanted again. The agony those 10-20 minutes caused led to my final fall from humanity. I whimpered back at him and slinked to Blue on all fours. My ex had gone silent but not raising his voice or stopping me. He just sat and watched as Blue rolled over to his back, erect penis leaking and making his tummy a mess. Before I had a second thought the pointy tip was striking the back of my throat and causing me to gag. I was sucking like my life depended on it, desperate for the taste of his cum again. As I bobbed up and down his knot started to inflate and I had a choice. Let my mouth get trapped as my teeth could not physically get around the knot, or release and perhaps I could compose myself again.

I loom bsck and find it cute I thought I had a choice. Blue’s penis is so large that I couldnt breathe as his knot took up my whole air pathway. Tears streamed down as his knot took hold. As low as I thought I could go I always seem to hit bottom after bottom. Not to spoil anything but this is not the last rock bottom I will hit. My mouth getting knotted pushed my standing in society from common contributor to society, an adult making her way, someone desirable to men, ‘a catch’; all the way down… to dog flesh light. His balls twitched as his potent seed drowns my throat. The addictive substance leeks out of my mouth past his knot and over himself as the sheer amount chokes me. My beautiful human mouth was now akin to a bitch in heat’s pussy as it takes a doberman’s load. Theres breeding machines that do this kind of work, that extract semen from various animals; why use those when they apparently can use my entire throat. This would go on for 30 minutes as stinking dog cum leaks out of my gagging mouth and nose but most importantly straight down my throat. I got into a rhythm of breathing and swallowing until it was only a little uncomfortable. What broke my concentration was feeling a prick in my vagina as my ex prodded me. His tip moving up and down my labia to ask the question on whether or not he should continue. In this state I would have accepted an actual Bull penis inside me as my brain liquified in horniness. I subtle nod as best I could while attached to a dog knot allowed him inside me as he fucked me relentlessly. It had been so long since I’ve been with my ex and part of me missed it. He doesnt have the biggest equipment in the world but he certainly knows how to use it. His length longer than Blue’s but the dog’s girth is no match and would trade a human penis for his any day. My ex rams my poor cunt hard as each jostle leads Blue’s balls to twitch further. It wasnt long until a dog and his master were both simultaneously cumming into the same worthless bitch.

I decided to dare try something as both of my orifices were being flooded. I tried half changing again and found it surprisingly easy. Nipples and small orbs of fat grew from my abdomen as the pads of my paws hardened. Despite the giant object threatening to completely restrict my air ways the transformation allowed for my long dog tongue to form. Judging by Blue’s whimpers it seemed to be a positive change. Mostly I was just looking for my pussy to shrink into the familiar canine, puffy triangle. As my ex blew his load and my transformation took hold he exasperated at the sight of the half dog girl in front of her. His dick unable to retract as my dog cunt squeezes around his dick. He understood the assignment and wasted no time pumping in and out. The feeling of getting fucked with a human penis as I had dog anatomy felt very similar to how being fucked by Blue as a human felt; something about a foreign object entering into something it shouldn’t makes it drive me insane. He came again in great moans and about a quarter of the cum. I eventually released him as he slurped out of my now reformed human pussy as white sticky DNA leaks out. It was around that time as well that Blue’s knot shrunk enough for me to retract myself, his dick still spurted little globs of his beautiful semen.

I was able to fully transform back into a human to Blue’s dismay and for the rest of the dog sitting week I was his bitch. I had bite marks on my legs and arms as he pulled me to suck his dick. I stopped bothering to shower with how much he made me dirty and how much it turned me on to be so marked by him. His mannerisms and training seem to fly out the window as he pissed everywhere and demanded food. At one point it got so bad that he tricked me into making him a bowl of his kibble but wouldn’t eat until I made myself something. Once I put my stuff on the table he jumped up and started devouring what I made for myself. He would growl if I started to stop him and he barked at me until I put my finally figured out he wanted my face near yhe kibble. It seemed he was accepting of me just being near the bowl of dog food but the thought of this kind of domination was too much to bear and I toon little bites. It wasn’t until my stomach started to hurt that I looked up and he was rock hard and bright red, ready for his mid dinner orgasm. I use my tongue to outline and worship his pointed tip which made precum leak out over my chin. I took my clothes off to prevent them from being dirty but lets be honest, it was to look the part of being the bitch. My scars and scrates on full display as I full envolpe my puffy lips over a penis they were never supposed to touch. This animal before me was never supposed to experience such pleasure but his dominance made me feel as if humans were the inferior race. He came deep in my mouth as he had many times before and I pulled away to allow small spurts to flow on my kibble. Blue looking down at why I had let his semen ‘go to waste’ led him to fully unleash his piss all over me. My food and my naked body were drenched in yellow smelly dog piss as he finally coats me in his scent. Any dog around would know how much of a subservient bitch this human was and perhaps they too would try to lay claim to me.

My Ex and his Fiancé found me naked on all fours cleaning up Blue’s territorial markings as he was knot deep dumping his cum inside me. I was completely exposed and ready for them to call the cops when I tried to explain. No amount of crying would fix their reactions as they screamed to for me to get out. Of course being the worst moment was when I once again turned into a dog. The transformation takes only about 5 seconds but the awkward pain of it all makes it feel like 30 minutes. Soon I was just another bitch in heat, not a care in the world as I flipped on my back side and barked with anticipation for Blue to mount me. Blue jumped with impeccable strength out of my Ex’s arms as he started humping my general pussy area. His dick still out of its sheath but softening as it flopped up and down. Eventually it was able to find purchase inside me and bliss washed over once more. I can vaguely remember the reactions of my observers in that state but as a dog human interactions become oddly foreign to me.

I woke up out of my stupor to find myself still as a dog with an bruised dog vagina. My ex said something to me that I couldnt understand but the request to turn back into human was clear. They were both sitting there like disappointed parents as I turned back to a bipedal form. Cum embarrassingly slopping to the floor as I stood to my full height. The conversation went exactly how you can imagine with a lot of berating and angry feelings. However, at the end of it, there was a resolution to not turn me into the police for dog rape since they saw how involuntary the situation went. I leaned into that and said that it kept happening and I had little control. I left out the part that I continued to get fucked by Blue when I was human. The Fiancé seemed to be pretending to be concerned as I could tell she was holding back a smirk. She had always hated me as I could shape shift into anyones deepest desires as long as I have been turned into them before. My most popular form of my exes was Shakira; his new fiancé could not turn into Shakira. But now the form she looked down upon now was dripping dog cum out of her pussy and theres no going back from that.

We parted ways with the intention to never speak to each other again and for me to stay as far away from Blue as possible. Seeing I just got the bailout of a lifetime I fled and for a week I did stay away. That was until I started showing signs of pregnancy.

I snapped out of it 2 hours later after Blue had cum three more times inside me. It sounds impressive but you have to remember it takes upward of 35 minutes for him to fully empty his balls. The smell of wet dog and sex permeated so deep inside me that 4 showers wouldn’t wash off the stench. As I was runnig myself under that hot water, dog cum kept slipping out of my gaping pussy and washing away into the drain. A feeling of mortified disgust filled me as I thought of the events that had just taken place.

I was less disgusted with myself on what I had done but rather what was going to continue to happen; what I was now addicted to. No one has made me feel this dirty and helpless. To feel wrapped in the strong limbs of an animal as he pushes nothing but pure lust into you. My hands are on the wall of the shower as I spread my legs as if to instinctively brace myself to being fucked. I remember his claws digging on my back as he tries to reach the right angle to have his cock dominate the pussy of another species. I thought about how my species over years of natural selection and breeding has forced him and his species to be subservient; and how he took that status quo and rejected it as he mounted me over and over. Not to mention how the female he was mounting was part of the dominating race and purposefully presented herself the moment she got free of her forced dog-hood. My mind raced further as I tried to remember again what being a dog under him felt like. The sting of his claws seemed to not affect me through my fur. The heat of sex was unbearable and made waiting painful but it made his proportionally large dog dick stretch me out in unhealthy ways. I miss the smell of his hormones that was so palpable with my enhanced senses that I could taste it. My puffy vagina was not as sensitive as my human one but that was for the best as I probably would not survive any more overloading to my senses.

I decided on a course of action for my last day with blue. My mind obviously overwhelmed with horniness all plowed through my human reasoning as I decided to “end it once and for all”. I would turn into a dog again but this time on purpose. I would then prove to myself I could handle resisting temptation and would never speak about this again. I went to bed and left Blue in the other room as I started my transformation so I could wake up as a dog.

I think we all know where this is going and I’m still not proud of it. But let me still tell you how spectacularly it failed. I chose to turn into some breed that was slightly bigger than my first one. I have this pit bull mix that I enjoy being if I had to because of the short hair and reasonable stature. I immediately woke up with my human brain slightly intact. Like I was saying previously I usually only have animal instincts as I transform because all the change in senses at once breaks me for 2-3 hours. Seeing that I spent my time asleep to get accustomed I now had human reasoning and dog like senses. Which makes me embarrassed that there was an immediate draw of Blues scent from the other room. His trail of hormones so strong I could see it visually in a blend of colors without names. I could taste his cock on my large tongue as I started to instinctively whimper. A moment of “get ahold of yourself” snapped me out of it briefly. I thought about how fucked this whole situation was and how twisted my reasoning it was to be a dog and was about to change back when the thrum of my heart beating was too much. Whatever had happened to me yesterday had hardwired lust for this dog on the other-side. I could sit hear and blame the dog hormones but we all know thats a poor excuse. I had a humans ability to reason with my senses and here I was desperate to take dog dick again.

Blue must have known I was coming as he stood in the other room, his red tip poking out the furry sheath. I sprinted in and laid down in front of him, panting like I had run a mile, and shoved my aching dog pussy in his face. As if he knew it would make the situation more embarrassing, he didn’t even react for the first couple seconds. He had jumped on me the first time but now he seemed to communicate something along the lines of “look at you, pathetic”. And I am pathetic. I was pathetic yesterday and im pathetic now as he calmly sniffed and licked at my puffy dog vagina. I was pathetic to think I could resist and now im thinking of barking to get him to finally mount me. It was another 45 minutes to regain myself long enough to understand what was happening. I was still a dog but transforming rapidly back into a human. The last half hour was pure bliss as he took his fat cock and pushed it into a vagina that was finally his size. He finally started panting as he made it his life mission to inseminate me and carry on his puppies.

He was over on the other side of the room licking his crotch as his knot went down. Im sure he had to be sore from the constant inflating and deflating. My bones cracked back into place and my organs rearranged. Blue’s most recent dumping of his seed now spilling out like a water faucet and I briefly wonder how he is able to produce this much cum. However, something weird happened with this transition thats only happened once before. On time in my yourh I had stuck into a bar as an older lady and gotten hammered. They didnt ask for my id since I looked so mature. Later that night I was throwing up in my friend’s toilet and I attempted to change back to my normal teen self. I guess I was so drunk it had given me the shape shitting equivalent of whiskey dick and stopped me from turning back all the way. I woke up hungover in the pear-shaped, mature body of mrs. Honey from my 8th grade, the face of my 16 year old face at the time, menopause, and young, tight skin. Something similar happened then and I looked more human than dog but with an elongated mouth and nose; almost like I lived in Whoville. My whole back and sides creeping into my front had short brown hair; my D cup breast were almost fully furry and I still had 4 more dog nipples hanging on my stomach. I was my typical human size minus about 3 inches in height and I had no other curves except my furry boobs. I still had a tail and my legs were humans but again, without fat around the hips. My hands were rough like I had walked on all fours all my life and my nails were hard and curved slightly forward. My feet were human but the same callused dog paw like skin and long nails made walked more difficult. The last thing I remember was my long dark hair which was usually very straight was now in beautiful curls which confused me.

Im sure there were other hybrid features but I was too frazzled to notice or care. The one who did notice was Blue, staring at me with intense eyes permeated with his dark and dilated pupils. His head hang low and his tongue hung out of his mouth as he panted at the sight of me. If dogs had fetishes im sure half human half dog hybrids was one of them. My elongated tongue lolled out of my mouth too as I started to pant, my body refused my requests to get off my back so each intense inhale I took jiggled my furry half dog breasts. My vagina was mostly human but was puffy like I had shoved it into a vacuum for an hour and I swear it had a slight triangle shape to it. My arms instinctively went up to my chest and my hands sunk down as if I still had dog anatomy, my panting became more panicked as a wave a of heat kept spreading through me. The feeling was unlike how I felt as a dog and oddly human still. I blame this moment as to what broke my brain and blurred my identity between dog and human. Blue was standing up right and on top of me, what he had for breakfast was filling my slightly enhanced nostrils as he breathed deeply in my face. His tongue so clost to the entrance of my mouth I took it upon myself to kiss him; not as a dog would kiss with long chaotic licks but as a human would to another human. My pink lips against his black ones, his tongue trying to wiggle into my mouth as he misunderstood the activity. His cock hovering erect over my tummy as unidentified liquid leaks out over me. My tail wagging with anticipation. My tongue finds his and its the first time I give myself to a dog. Not as an equal or a submissive bitch, but as a romantic partner.

I didnt always love dog cock. That metallic tasting, sweaty, red popsicle sticking out of the sheath of my ex’s pet. It’s all I think about nowadays. So much so that my ex was thinking of adopting me and have me be his pup full time.

Pushing back a couple weeks ago and a little introduction of me. I have a curse where I turn into people or animals against my will. It’s usually the worst possible transformation at the worst possible time and it really fucks me at every turn in my life. It messes with my head too and I have to go through constant therapy to keep myself from going insane. Imagine you’re in school worrying about how well you are going to do on your final only to slowly and painfully morph into some insect creature. Or talking to a boy you like and you turn into some old man which turns out to be his estranged father. It’s a true curse with only one small upside; after I turn into that person or animal, I can turn back into them at will. Its the only control I have with myself and why I am able to make money in the first place. I rent myself out to zoos where I pretend to be exotic animals ive previously turned into. Its actually very lucrative and I get to make my own schedule so everything is flexible. Thats neither here nor there, as you probably are seeing where this is going.

Fast forwarding back to my ex. We still love each other but I kept turning into his mom accidentally during sex so it honestly was a green flag for him to draw the line there. We still see each other and have sex sometimes, I do have Shakira saved as someone I can turn into which is probably the only cool thing I have in my change log. He loves fucking Shakira. We grew apart because of my difficulties and it brings us to now where he is going on vacation with his now fiancé and im here to watch his dog Blue. A giant scary doberman retired from the police force. Hes really a sweetie once he gets to know you but he doesnt know many people. So despite his fiancé’s concern for me being at their house while they were away, I was really the only option.

It goes as well as any dog sitting could go until about day 4 when I start to feel my hands and feet get rough. The familiar feeling of bones squishing togethor like they are being melted and reformed takes over. I start to itch all over as white curly hair starts sprouting from my skin. My organs shrink and rearrange as I fall over on all fours. This would normally be mind numbingly painful but thankfully the curse also suspends my receptors as everything gets remade, including my human instincts. I black out and wake up with Blue the massive doberman standing over me with confusion and concern as one of his trusted humans now is in the form of some poodle terrier mix. His giant form looms over me as the wave of senses comes rushing to me. New smells and new ways of viewing the world rushes to me as I take it all into my now tiny brain. I bark in an attempt to speak human curses which causes Blue to rear back. He massive teeth bare at me as his first instinct is to attack the unknown. I instinctively sneeze and roll over on my back to show how little of a threat I am. Ive seen hime tear shreds into toys twice my size and way more durable. Then my sense of overwhelming smells evens out to let me hone in on the most interesting ones. The closest is Blue who is now sniffing my brand new puppy crotch. The puffy vagina sits there to the open as an overwhelming heat clouds everything else in my mind. Ive been in heat before but ive always been able to keep myself away from compatible species. I want to make it clear I have had no desire to be with Blue up until this point and I dont think you would understand the urge until you were forcibly put into a hormonal dogs body.

I estimate with my age of 26 that in some translation to dog years leaves me to be well overdue for dog puberty and a whole hell of a lot of hormones were coursing through me. I deduced all of this afterwards. In the meantime, this small ass form needed one thing out if this world. Needed it more than food, water, or my lack of understanding for oxygen. My black and white vision getting blurrier by the second as real heat pumps in my veins and to my dog vagina causing it to throb and glisten with welcoming fluids. There was no convincing Blue, it was animal instinct meeting animal instinct. As sure as gravity did our bodies collide together. The memory of myself getting to all fours and having my ass up was nonexistent. In moments his dog penis was causing immeasurable pleasure to me as my tiny tongue lopped out of my grunting small body. From the outside the scene probably looked ridiculous as such a giant dog fucks a some small yapper dog into complete submission. My senses refusing to revert back to me as he continued to pump faster and faster into my small body. The impossible combination should have done terrible damage to my small dog form but seeing that non of this is natural would suspect some change curse fuckery was in play.

I had actually talked extensively about the horrible possibility of animal sex with my therapist. It got to a conclusion that it was morally fine for that contingency to happen seeing that for the first few hours my brain warped completely so much so that I couldn’t remember that I could change back until I got ahold of myself 2-3 hours later. What I was not prepared for was passing out as a dog as the pain of his knot shot up my stomach and dog uterus as he pumped an unfortunate amount of dog semen into my fertile dog pussy. I woke up to find myself in human form, naked, and still connected to his knot as the last of his dog sack gets emptied into me. Theres no excuse for what happened next, I could try to but it makes no difference, i sat up, the knot easily slurped out of my now human vagina. Small spurts of dog cum still leaks out but the main damage was all that was leaking out of my pussy. My expanded human uterus could now easily take a lot more dog cum but it still leaked out as a testament to how much he put in me. Questions and concerns flooded my brain but were all but pushed down as the my main objective still had not changed from when I was a dog. The overwhelming urge to get pregnant by anyone, anything, pushed me to leam over and ick my crotch. Not able to do it anymore as a human I struggled and grunted to get to the floor where I lapped up his cum from the floor and the salty metallic taste pushed me further toward him. Blue and I locked eyes as we both momentarily had the same expression of ‘oh shit did we just do that’. Which changed immediately as my human mouth dove for his still hard dog penis. The knot had swelled down but its full thing still as hard as a dog penis could be. The smell of wet dog filled my brain as everything went numb. The overwhelming horniness warped my judgement as I prepped him to mount me again. He seemed to get the message immediately and sat up to make it easier for me. To add insult to injury he put a paw on the top of my head in agreement that I should shove his cock further in my throat. His drool dripping on me and it made me think of my ex who would do the same forcing of the back of my head and spitting on me to assert dominance. I add that feeling of warped humanity to my useless excuses as to why I continued.