When he suddenly regained consciousness it was warm and dark all around him and he heard a rhythmic thumping. When he tried to open his eyes it felt like they were sewn shut, his body now allowing him to open them, almost like he was stuck in a nightmare even his mouth wouldn't open when he tried to scream. Suddenly a flash of pain ran through his head like a jolt of lightning when he started to remember what had happened. 
He had been dying, laying in a hospital after a car crash, only having reached 26 years of age before the disaster struck. And now he was confused as to what had happened after the last time he closed his eyes. He knew the doctors said that his injuries were lethal and that he didn't have much longer to live, even his family didn't manage to visit him yet. But after waking up again, he somehow felt weightless like he was swimming in a warm pool.
He didn't understand what was going on since he was sure he had been in a hospital bed the last time he was awake, was this some sort of special treatment they had put him under in a last ditch effort to save him? Unable to open his eyes or mouth for some reason, he did the only thing he could think of to explore his surroundings and started to move his hands around.
Instead of a hard wall of glass, steel or even nothing, he started feeling warm and surprisingly soft, even kinda fleshy walls around him. As he kept exploring he suddenly noticed that there even seemed to be someone else there with him as well, though they didn't react much when he touched them, maybe they didn't wake up yet. Even if it should have been obvious as he was submerged, the realisation that they were naked made him quickly touch himself only to find out that he was missing his clothes as well. 
Then suddenly he felt a fleshy tube connected to his belly button and he began freaking out. His first thought was some dystopian future like in Matrix, being just a sack of flesh that was being used while living a dream. After his racing heart began to calm down again he began to connect the dots more rationally. The biggest clue was that his surroundings were made of flesh and not some form of metal or similar and with the rhythmic thumping around him sounding like a heartbeat, it suddenly led to only one conclusion even crazier than the ones before.
He had been reborn, well not quite jet reborn since he was still in his new mothers womb, but still he had gained another life in another body, yet he could still remember and think like his previous self. This also explained who the other person with him was, they must be his unborn. After spending some time getting over the initial shock and realisation, trying to make sense of the situation, a new question formed in his mind, what was he supposed to do for fun?
He tried to meditate or make other forms of mind games with himself, but as was the case in his previous life, this was not for him and he began to grow bored, only able to wait for the inevitable. As the boredom grew more and more he slowly lost some awareness of the situation and as he had often done his hand almost subconsciously roamed down to play with himself, if not for the massive cock he suddenly felt in his hand he might have just done so without thinking anything more of it either.
But now he began to investigate his private bits and quickly realised that he must be massive down there, at least for an unborn baby since even with his second hand he couldn't nearly wrap them fully around his still soft cock. Then another thought occurred to him as he remembered his dying wish and he quickly moved his hands further down, having to move away a fittingly huge pair of balls and when he found what he was looking for he wanted to jump and shout in excitement.


He or rather she now, was a futa like she had wished for so many times in her previous life, where something like this was only possible in fiction and just like so many of those fictions she had a huge cock. Just from this excitement alone she could feel her cock almost instantly get hard, helping her discover just how massive her new futa cock truly was. After some more preliminary exploration she quickly put her hands around her cock and began stroking.
She immediately discovered many problems both with her enormous size and the cramped space in her mothers womb. Also her still extremely immature body wasn't able to stroke herself as fervently as she wanted to, making it more exhausting than she could have imagined. So at the end she managed to masturbate somehow through willpower and the driving power of boredom, also having her cock constantly rub against the soft walls of her mothers womb or her twin, helped a lot. 
In her previous life she had the pleasure of having some alone time in a hot tub as a teenager and this experience reminded her a lot of that time, just with a few caveats. After some time of working with her hands around her massive shaft, she discovered something else as a shift in position made her cock press against her mouth. She was overjoyed finding out that she could pleasure herself like that and without hesitation wrapped her mouth around the tip, not getting further than that however as her infant mouth was far too small for her massive futa cock.
Despite that setback she kept masturbating like this for some time longer, focussing on the feeling of her tight little mouth wrapped around the tip of her cock and her tiny little hands doing their best to stroke it, until she felt her orgasm quickly approaching. For a moment she grew worried about what would happen to her cum in an enclosed space like this, but then remembered that she was far too young to produce any semen even if her hefty balls suggested otherwise. So with no more worries left she soon pushed herself over the edge.
The incredible feeling of an orgasm was overwhelming her senses, maybe it was because she was a futa now, or her first orgasm in her new body, but it was incredible. Even the duration seemed much longer than usual, leaving her enough time to get used to the sensation, then something started bothering her. While she couldn't see since her eyes were still forcibly closed by instinct and everything was dark anyway being in the womb of her soon to be mother, she thought something was off, then she felt it! 
When she did she immediately knew that her previous assumption was very wrong as she felt a torrent of cum being shot out of her cock like a waterhose being let loose. And soon enough she could feel the temperature around her increase slightly, but more worryingly the pressure on her body noticeably increased, as her mothers womb was flooded with incredible amounts of cum.


On the outside Miranda had felt her babies grow more active in the past few hours, spiking drastically since the past 20 minutes or so, making the young mother grow worried. Then she suddenly felt like her belly was growing heavier and when she looked down she saw that it was in fact quickly swelling up. She had to lie down after hastily calling for an ambulance, not aware that the cause of this was her unborn futa daughter was filling her with her cum, which might have worried her even more.
Miranda was a young tigress only 16 years old. Nowadays teenage pregnancy was already unusual and troublesome, even worse was that she was both mother and father to the twins growing inside her belly. Just like the daughter now flooding her womb with cum, she too was a futa though her cock wasn't quite as impressive as her daughters. Still she managed to get up to a lot of mischief even at her age, hitting the pique of stupidity as one night she pleasured herself by using a new invention that hit the market, portal panties.
Originally meant for couples who were far apart, she immediately knew that she had to get them for herself when she saw the ad for them, thoughtlessly spending all her savings on them. Her initial thought wasnt even that she would fuck herself, but rather that she could finally be with a guy, like all her friends had claimed. Since puberty she had become very self conscious about being a futa, fearing most guys would ostracise her and this way she wouldn't have to show her partner all her privates. But with too much boredom and missing partners much like her daughter, horny decisions were made and soon after she was flooding herself without thinking about protection.


Inside the womb the unborn futa had finally finished cumming and was now swimming in what she assumed was mostly her cum at this point. A fact which made her stay very horny as different questions ran through her mind, all while she started to enjoy her new female parts by beginning to finger herself. She got curious if her cum could get her mother pregnant again while she was still inside, maybe she was even getting herself and her twin pregnant this way. While the thought was incredibly arousing to her and even after that physics breaking load she just dumped inside her mother, she was somewhat sure that this would prove impossible.
After what felt like hours the unborn futa grew restless again, just lazily fingering herself wasn't doing it forever- Especially with her massive cock being kept at a full erection as her unborn twin kept rubbing against it, awakening new desires in her over time. She knew how messed up even thinking about it was but then again who would ever find out about it, her twin wasn't yet aware of what was going on she was sure of that and even if they were they wouldn't remember what was happening now.
So after she quickly put her remaining doubts and concerns aside she began with her debaucherous plan. At first she gently started to explore her twin, quickly affirming her assumption that her twin was in fact an unborn girl, having a small virgin pussy between her legs. With the tight and small space they were in it was hard to manoeuvre herself into a good position for penetration, but after some shuffling she was able to rub the tip of her cock against her sister's virgin pussy. 
She wanted to penetrate her sister so badly, but not only could she barely move around, but her unborn sister was obviously extremely tight, not meant for any cock especially not one as monstrous as hers. If she were in an adult body she at least would have had more strength to maybe force her cock inside, but her unborn body was just too weak. So after some more fruitless attempts she figured that she would have to find another way if she wanted to be able to fuck her twin.
She moved herself back into position so she could reach her sister's pussy with her hands again. Luckily for her, that massive cock of hers was big enough for her tip to still reach her sister's puss, this way she could at least try again much more easily every time she thought she could fit herself. The impatient little futa wasn't in the mood to be gentle, so she wasn't about to stretch her sister slowly and instead just began shoving her fingers inside one after the other. 
Which as it turned out was rather difficult as that pussy was extremely tight even around the first one of her small fingers, but with force and time she eventually got her entire hand inside her twin sister and began stretching her even harder. Through that endeavour her sibling began to twitch and even struggle a lot so even if she wasn't conscious her body was feeling that something very unpleasant was happening to her.
Even though in her previous life the futa would have never thought of herself as a paedophile and especially not a rapist, however in that moment the struggling unborn baby struggling to escape her grasp was somehow getting her even more excited. She felt like her cock was about to explode with how much blood her body was pumping inside it. 
When she felt that she was done stretching her sister, she went on to guide the tip of her cock towards that stretched hole, holding her monstrous cock right now, felt like holding an aggressively throbbing solid steel rod inside her hand. For a moment she felt sorry for her sibling, but then the excitement pushed any sympathy aside once more as she felt the tip of her cock slide inside that tight virgin hole.
In her previous life she had never felt anything this tight around her cock. She could feel every heart beat of her sister around the tip of her massive dick. If she wasn't this hard she was sure that none of this would have been possible. Now that she was finally inside her sister she could begin to push in deeper. At first she forgot to reposition herself however, leading to shallow thrusts without much force behind them, making her almost slip outside in the process. The struggling unborn in her grasp who seemed very unhappy about what her futa sister was doing to her no longer virgin tunnel didn't help either.
So after a lot of time shifting around she could use her position to her advantage and started to thrust inside her sister with all the force her unborn body could offer. At first she made little to no progress, but soon she could feel her sister's inside give away and let that monstrous rod push in deeper. Sadly she couldn't see it or had the flexibility to feel for it but she could easily imagine how her massive rod deformed her sister's belly stretching it around her cock. What she was certain about was that her sister's struggles continued to increase the deeper she went.
The young futa was in pleasure heaven, feeling her incredibly tight sister stretched around her cock, who at this point was unable to do anything against it the continuous thrusting pushed that  hot and throbbing dick in deeper and deeper. Eventually she felt her sister's body go limp, probably having no more energy left in her tiny soul to struggle or maybe even starting to feel pleasure though that felt unlikely to the futa girl. She felt a new barrier when she was about half way inside her sister, assuming it was her womb though that seemed already incredibly far considering how large her cock was, she had initially assumed she would tear her sister apart a quarter of the way inside. 
The tiny futa could only reach one conclusion inside her tiny head that her sister must have been made to be her sextoy. The self-centred thought ran a jolt of excitement through her body and without further hesitation she decided to push in even further. It took even longer for her to go further to push through that impossible barrier then it took to get inside even with all that stretching she did, still lacking any significant amount of strength, all she could do was keep at it. 
Being as determined as she was, this was only a small hurdle to overcome and eventually she felt the barrier give way and her cock slid into her sister's tiny womb stretching it around her tip like a condom. With the cervix overcome she could finally push the rest of her cock inside, which by her calculations meant that it should reach up to her sisters throat at this point making her scared for just a moment that she might have overdone it.


Meanwhile on the outside the pregnant tigress and a doctor were watching a screen showing what was going on inside her belly with wide eyes. While the doctor visibly paled and was unable to find a medical explanation, Miranda's growing arousal was quickly getting very hard to hide. Luckily for her the doctor left the room telling her to keep an eye on things while he had to discuss this with his colleagues. However she caught a glimpse of a visibly growing bulge inside her pants, convincing her that he meant to take care of a problem much like her own. 
Being left unsupervised for now she could quickly take hold of her needy cock and start stroking it while watching her daughters have sex, before they were even born. Truth be told she was very frightened when she found out that she had gotten pregnant, being too late to abort it and unable to tell either the truth of the matter to anyone nor find a male to take the responsibility. Her life seemed to have been over before it really began having to take care of her own selfcest children before the age of 18.
But now watching her futa daughter turning her sister into a living condom gave her some reassurance that maybe this wasn't such a bad thing. While not having admitted it to herself previously there had always been some attraction to cubs for the young futa, enjoying babysitting for her neighbours and catching glimpses of naked cubs. Now her head was spinning out ideas about all the things she could do when the children were her own and she wouldn't have to be as careful not to be caught.
She was imagining fucking that pussy of her daughters just like the futa was doing now, or even letting that massive cock destroy her own pussy, just like she had imagined some guy would when she first purchased those cursed portal panties. Or even just watching them go at it was enough for her as soon a fountain of cum was erupting from her own futa cock spraying her with her own potent hot cum.




While her soon to be mother was furiously masturbating to the sight before her, the unborn futa was only noticing some mild trembling which she wrongly mistook for mild exercise. Having managed to push herself impossibly deep inside her sister's hot and incredibly tight pussy, she was having trouble holding herself back from cumming already. Her sister's pussy and womb were clenching extremely tight around her massive cock, the unborn sex not being meant to be penetrated yet especially not by an enormous cock like her sisters.
After the futa finally grew accustomed to the extreme tightness around her cock she slowly began to thrust in and out of her sibling. Both the fact that she was still inside the restraining confines of her mothers womb and her weak infantile body didn't allow her to ravage her sister as much as she wanted. However with some clever positioning she was still able to put some force behind her thrusts, making her twin clench in pain each time she hit as deep as she could.
Suddenly she felt like someone was pushing her from behind, giving her even more momentum and doing most of the work for her, which in fact was her mother to be beginning to help out by pushing on her belly after she had finished herself. With her mind left to wander the futa remembered how much cum she had blasted during her previous orgasm and was beginning to imagine her sister turning into a balloon filled with her seed. Maybe she thought, maybe if she was able to already produce cum, her sister might just already be able to get pregnant. Just thinking of her sister being born pregnant with her cubs was enough to push her over the edge and she started blasting a massive torrent of cum inside her womb.


Unlike the futa stuck in the womb, the tigress Miranda wasn't bound to her imagination and could clearly watch as their unborn daughter's belly rapidly began to inflate as the futa was filling it with her cum. Somehow her unborn daughter was even able to take that much though she couldn't imagine how much pain she must be in right now. Even the fact that she helped by pushing on her belly in the right way, both made her feel guilty and excited at the same time, soon both her daughters would be born and she could join their fun.