"Lake Monster" - Mosasaurus TF & TG Story (Patreon)

Man into Female Mosasaurus Transformation Story | Unwilling | NSFW | 3rd PoV

John was a self-taught diver. He practiced his skills for many years, since the love for water blossomed in him for the first time. After years of digging into the topic the man even managed to find a private spot to practice diving. The place was a deep lake in the middle of a dense forest, which was relatively close to his house.

He discovered that special spot quite recently and so he didn’t have much time to explore its secrets. That day he wanted to change that and spend the entire day on diving there to uncover the secrets of that place. It wouldn’t be the first time John would perhaps find a bauble of past or two.

The man prepared his diving equipment and without stalling jumped straight into the cold, flora-filled water. Swimming alone was pleasant and refreshing, but diving had a special thrill to it which John enjoyed a lot.

He passed the water without an effort for now and explored the floor of the lake diligently. He saw several wooden items, which were lost in the mud and crap so he gave up on trying to haul them out – They were just not worth it.

When John turned around he saw something shining dimly in the distance. He swam up to the object and gasped from the shock. The object was looking very much like a bone of some creature.

John was too curious not to pick it up and so he did. He instantly felt goosebumps rise over his skin, even though he was entirely encased in a wetsuit. He was weirded out by the sensations, but he blamed them on thrill of finding something potentially valuable.

The diver inspected the bone. It shocked him more with each passing second as John slowly came to realise that the bone probably didn’t belong to a native species of this region. It was even alien in appearance so to say.

John was starting to get constantly distracted from the bone as his gums started to throb and ache unpleasantly. The man didn’t expect that, since he cared for his dentition. He decided he’d resurface soon. However time was of the matter as unbeknown to John his teeth have started swelling in his gums, sharpening and turning into wicked fangs of an unknown creature.

With a sigh John decided to resurface to inspect the bone in peace. However as he started swimming upwards he realised how strange his body felt. His wetsuit was actually becoming overly tight around his frame all of the sudden. John blinked dumbfounded at that and unbeknown to him his eyes started turning amber in colour, while the pupils became vertical, reptilian slits.

The sensations over his body were getting even more outlandish as his scalp and chin started to itch. John could’ve sworn he saw some of his hair come into his vision. His eyes widened in terror when he realised that he was balding abruptly. All of his body hair was slowly starting to fall out.

John instinctively wanted to open his mouth and scream, but he didn’t because he knew it was not an option underwater. Instead his lengthening and tapered tongue slammed against his fangs. “Fuuuck! What the fuck is happening to me?!” – His mind yelled out for his mouth.

The changing man shook his head and got back to resurfacing, but his limbs were starting to feel bizarrely stiff. John gurgled in dread and sent bubbles of air to the surface as he felt his arms and legs start to shorten and slowly get pulled back into his body. His neck started to ache and with an audible snap John was suddenly forced to tilt his head upwards into a more primal position.

The diver started breathing hard, he never expected anything similar to ever happen to him. He was becoming some kind of a twisted monster and underwater too which made screaming for help impossible.

In the meantime his entire body continued to swell. His wetsuit was starting to split open at the seams, revealing John’s skin. The skin was rapidly morphing into something else. Dark, resilient and hard scales began to engulf John’s form. His wetsuit wasn’t able to bear the rapid bloating shape of John’s torso anymore. With a snap his wetsuit split down the middle and revealed his mutating upper body completely, just like that.

“Ghrl-ghl, ghrrlllllp-mhhhrhl…!” – John started begging pitifully as his face began to push out. His mask started to get pushed off his increasingly reptilian visage. It finally snapped off and John started freaking out that he’d suffocate because of his frantic actions.

His body deceived him. His respiratory system began to remould as a whole. His lungs started expanding and forcing his ribcage to expand and elongate. John’s nose began sinking into his face, until only his nostrils were left. They began to stretch and turn into reptilian slits on the forming muzzle.

John thrashed his head, as much as that was possible anyway – Since his neck felt less flexible at this point and he was forced to stare forwards. His ears began to melt down on his changing head, until they got fully sucked into his flesh and left smooth flesh that would soon become scaly hide.

John groaned and gurgled in discomfort, seeing the sharp muzzle continuously grow out. That is until his eyes started to get pushed aside by the forming protrusion. They nestled on the sides of his primordial head. His neck in the meantime started swelling and making the difference between his head and torso less apparent.

The limbs continued to twist and contort. John’s arms were reduced to short limbs on his rounded torso. Strong flesh began to fuse his digits together and flattening them into aquatic flippers. John was barely able to move them, yet they would certainly be able to help him adapt to the underwater environment.

The scales that have covered most of his body by now started to change colour. His upper body became dark shades of blue, while his underside became lighter shaded. John’s head was finishing its changes as it began to flatten and make the changing man thrash in discomfort as his brain was squeezed into a smaller and simpler shape. His forehead disappeared completely as well.

The changes have progressed too far for John to have any hope of regaining his former form. He wanted to at least ease the pain of the changes, but that wasn’t something he was able to tune himself as the changes slowly focused on his lower body.

His legs were now barely existent. His remoulding and flattening feet were sticking out of his bloating underside. His body continued to swell bigger and his diving equipment was starting to swim away from his grotesque form. The diving fins were gone, his wetsuit was utterly ruined except for some parts clinging onto his rear.

That was about to change as John felt a jolt of pain surge through his entire spine. He felt his form getting stretched into a longer and more streamlined shape, fit for aquatic life. Worse yet John felt an evident mounting pressure in his tailbone.

“Ghrugh-hhrrl…!” – He snarled with a booming and incoherent voice that lacked all human aspects as his tailbone began to push out. A lump formed in his wetsuit and it continued to grow. Gradually pulling the remaining wetsuit off John’s torso.

John felt the forming muscles twitch as the strong and long tail slowly took shape. Its base was thick and the forming tip appeared to take a slightly paddle-like shape. The tail swinged wildly behind John, forcing his massive body to swim forwards in a scary pace.

The tail slowly finished its growth and John tried to calm it down, but then he felt the changes continue to work on his legs. His feet were now nothing more than two practically solid flippers, similar to those that his arms became.

Snarls and growls filled the lake and formed slight waves across it as John’s body continued to swell larger. Even John himself was becoming intimidated by his new size and form. He felt like he could spill out all the water out of the lake if he’d try.

As his entire skeleton grew larger and thicker, so did his intestines. Besides that they changed more than it appeared on the outside as the human was becoming reformed into a prehistoric beast. John started swinging his tail anxiously when he felt what used to be his groin morph.

He knew by now that his increasingly scaly form signalled that he was becoming a dinosaur, but his genitalia changing into fitting counterparts caught him off guard nonetheless. He made several barrel rolls from the nauseating sensations of his cock getting gradually pulled into him.

His testicles were already hauled deep into him and there was no sign of mammalian scrotum on his underside. John felt a hot wave of fluid underneath him as his shaft shrank into a nub and got sucked into a forming genital slit.

The slit was throbbing anxiously, but not from the transformative stimulation alone. It was gradually getting pulled closer to the base of John’s thick tail, closer to his asshole. When the two orifices met they started to merge. A single cloaca was formed from the two. It winked lewdly several times, before tightening and getting encased by the scales.

John wanted to scream, to gesticulate, to do anything to express his dread, but he wasn’t able to. He knew that he wasn’t even a he anymore. Worse yet, as the changes finally seemed to come to a halt John began to feel something in her lower body.

She felt something writhe inside of her, warm and wet. She felt a heat inside of her and an unimaginable sensation of being swollen at her abdomen.

Before John was able to do anything she felt her cloaca start to throb intensively. Lubricants began to spill out of it and make John cringe inside of her mind from the humiliation. She felt her reptilian vent start to spread as something deep inside of her began to push through her birthing canal.

John bellowed like a loch ness monster as she felt a small snout pierce her cloaca. Only then she realised that she was in the process of giving birth to her offspring. John felt the creature try to fight its way out, but she knew that she had to help it at this point.

John flexed her abdominal muscles and began to push intensively. She felt the smooth, almost blubbery body of a small mosasaurus spill out of her. John’s eyes widened as she pushed out the creature fully. The strange sensations in her abdomen gradually died down, but not the emotional ones.

John was stunned, she just became some sort of a prehistoric aquatic reptile and not even a male one. All that to give a forced birth to a creature like her. John wanted to contemplate on that further, but she felt something nuzzle against her long muzzle. It was her mosasaurus.

John felt a heat once more, this time in her chest, but it was an emotional one. She knew she wasn’t able to leave the creature alone, when she was its mother. John nuzzled the creature back and sensed that it was hungry. John knew with full certainty that it was the time for a little hunt…