Hitomi Tanaka: Growth through Sex and Arousal

Mayumi Hasegawa sat on the sofa, watching TV while Hitomi rested her head on the doctor’s shoulder both nude both covered in sweat and cum while the floor had splatters and pools of cum in various places. Ever since Mayumi had turned into a futa she had sex damn near non-stop, hell she had even been in one of Hitomi’s porno films as a masked ‘****’ which oddly enough got her aroused like crazy. She had spent more time fucking than doing her job this past month the higher ups were asking if she was leaving it had gotten so bad. She wanted to work but this sex drive she was having taking up her working time and she didn’t exactly feel bad about that. It was strange, Hitomi suddenly touching her dick brought her out of her musings. “Senseeeeeeei,” she moaned, “I wanna fuck again.” she pouted.

Mayumi sighed, “We just fucked for 4 hours,” she said, “Lemme just finish watching the news first.” She pointed at the TV where a reporter was near the Meteor piece that landed in Tokyo Japan. The meteor was glowing strangely and it caused a lot of panic as a result. There were men near the meteor, with radiation detecting devices and equipment trying to scan the otherworldly object. Despite their attempts they couldn’t read whatever energy was building up in the meteor but it had been noted the other meteors were emitting this same energy.

The newscaster was a woman who spoke rather calmly however her eyes showed her worry and fear. “...Still unknown why these pieces of the great Meteor are suddenly glowing with energy, however so far the scientists feel that there is nothing to worry about.” She said and she droned on about the scientists and energy theorists.

Mayumi sighed then she moaned as Hitomi began to pump her cock lazily. “Hitomi!” she said, voice raised.

Hitomi looked at her, “How can you expect me to ignore your massive fucking cock? And these big,” she leaned in and sucked on the doctor’s balls, “Delicious,” she nibbled them gently, “Baby making balls?” she ran her rough tongue against them. That was enough to pry Mayumi away and she pushed Hitomi back. Hitomi fell back onto the couch and spread her legs invitingly. Mayumi shifted so she could stick her huge rapidly hardening cock inside. A single thrust and it was in, despite it going in so easy she felt Hitomi’s inner walls clenching down on her.

But that didn't stop the doctor from thrusting it in deep poking straight into Hitomi’s womb. Her cock bulging against Hitomi’s skin. One hand resting on the back of the couch for leverage the other on the seat for position, she began to thrust in and out wildly, her huge balls swinging up to slap Hitomi’s butt with every thrust. Hitomi moaned and gasped as Mayumi rammed her dick in with ****. Both so engrossed with each other they never saw the TV showing the meteor’s were glowing with a bright light. “The Meteor’s are emitting a light and energy we’re told that-” she stopped as a wave of energy shot out enveloping her and making the screen turn to snow.

The two futa’s were still oblivious till Hitomi saw the wave in the window. “S-Sensei! The window.” But Mayumi was too charged up to speak. She just slammed it in even harder causing Hitomi to moan. Then the wave passed through the walls and it hit them both, and both felt it fill them up with energy and desire. In fact that energy caused Mayumi to pull out and look in shock as her and Hitomi’s bodies glowed briefly then faded as the energy wave kept moving forward. The two stared at the wall, “What was that?” Hitomi asked.

Mayumi shook her head, then she looked at herself and she wasn’t glowing anymore. Neither was Hitomi… she didn’t feel different either, just still horny from not shooting off. But she felt like she should first examine herself before doing anything. “Come on we’re going to the hospital.” she said and she went to get her clothes Hitomi right behind her.

-An Hour Later-

Mayumi looked at her blood. What she saw was strange, the cells in her blood seemed different but she wasn’t sure how. They looked the same yet they seemed… more invigorated it was hard to tell. She moved her blood sample to the side and got Hitomi’s and looked under the scope, and found the same thing. Hitomi was watching her silently, “Sensei?” she asked.

Mayumi scratched her head, “I dunno it seems different but I don't’ know how.” she said, “I’ll have to see what the doctors say about other futa’s that are affected.” she said.

Hitomi frowned, “Does that mean we shouldn’t have sex?” she asked.

Mayumi nodded, “That would be ideal but you work in the sex industry. Just try to keep your activities to a minimum.” she said. Hitomi nodded and the two went home to sleep on it.

-The Following Day-

Mayumi looked at the notes from other doctors that had been sent. After the wave some futa’s had started growing while some exhibited growths for similar activities for the most part they all grew via different stimuli. One futa grew when she was working out, another grew whenever she got aroused, and so and so forth. It seemed that there wasn’t a ‘pattern’ to it. She wondered if the same would happen to her or Hitomi. It was then that her cellphone rang she picked it up, and saw Hitomi’s Cell ID, she answered, “What is it Hitomi? I’m a li-” she began but Hitomi interrupted.

“Senseiiii I need your help! Something happened to me!” she said.

Mayumi instantly got up, “Do not do anything go to your trailer and wait there understand?” she ordered.

She heard Hitomi sniff, “Hurry up Mayumi!” she moaned. Mayumi knew she had to hurry. Hitomi only used her name if she really wasn’t feeling good.

-Several Minutes Later-

Mayumi pulled her car up to the studio where Hitomi was working on her next porn film, she walked up to the Director who was watching Hitomi’s trailer quietly, “What happened?” she asked instantly.

He looked at her, “Funny thing we were getting going she was supposed to be going at it with a girl but it was then during the thrusts that suddenly she began to grow… and I don’t mean down there I mean her whole body.” he said. “What do you think happened?” he asked.

Mayumi explained the meteor energy wave, “Depending on the futa they grow based on different stimulus it seems her’s is sexual intercourse.” she guessed.

He rubbed his head, “You gotta talk with her she’s a mess, could barely fit in her trailer and once inside she didn’t want to come out or talk to anyone.” he said.

Mayumi nodded, “Pack up she’s done doing films for now.” she said.

He sighed, “Shit, the brass won’t like this.” he said.

Mayumi looked at him, “Why don’t you just hire a new futa, surely you’ve been making quite a haul on this.” she said.

He shook his head, “We do but you don’t get it, because of this alot of people see futa’s as being total sex machines that think about sex every minute they’re awake it doesn’t help that Hitomi really helps push that image we tell her to be more gentle but she get’s super into it.” Mayumi nodded, this was true when Hitomi started fucking it was impossible for her to stop. “So alot of futa’s are getting some discrimination as a result and not many of them want to do these videos because it just further fuels that discrimination.” he said. “I mean we’ll offer deals but doubt we’ll get others.” he said. “Anyway she’s all yours.” he said and he moved to pack up everything.

Mayumi walked to Hitomi’s trailer and knocked on, “Hitomi-chan?” she said a rare moment, the trailer squeaked audibly and the door opened. Mayumi walked in and looked up to see Hitomi was slightly hunched, she was easily 8 feet tall. Her new longer legs allow her to stand over Mayumi and the door and close it without anybody outside from seeing in. Mayumi walked up to her, and held up her arms, Hitomi got to her knees and hugged Mayumi, “Shhh it’s ok,” she eased she felt the hot tears of Hitomi dropping onto her back, “Look you and me are gonna have to go into a facility.” she said.

Hitomi pulled back, “A facility?” she asked.

Mayumi nodded, “Look, futa's all over are growing, it's not just you. We gotta go to a government facility so they can find a way to reverse this. I’ll be offering my assistance as well.” she said, “Do you trust me?” she asked.

Hitomi sighed then nodded, she leaned forward and kissed the doctor, when they parted she looked at Mayumi. “You won’t leave me?” she asked.

Mayumi smiled, “Never you make me happy despite my groanings.” and it was true Mayumi was truly in love; nothing would separate her from Hitomi. “Now come on let’s get something to cover you.” she said.

-An Hour later-

Mayumi drove Hitomi to the very edge of the city where forest began to take over, they kept going till Mayumi drove down a path in the forest, she kept driving till she came to an open path. It spread out and revealed a large hangar with a facility being built next to it, much larger than the hangar itself. “This used to be an old military base for Kamikaze pilots, but after the war it was dismantled… mostly. This is where we’ll be living from now on.” Mayumi said.

Hitomi looked at her, “What do you mean living here?” she asked.

Mayumi sighed, “look after yesterday the government began building these facilities to house and store the futas affected by the meteor. This is one of dozen it’s the same in other parts save Saudi Arabia and Iran who want to persecute futa’s even more than ever but that’s just causing bigger support from the women there in fact whole tribes have been built around them worshipping them as goddesses. There’s going to be a huge change in that part of the world.” she explained. Hitomi was silent, “look I love you and I don’t want anything to happen please stay with me I’ll be working with other scientists to find out how to prevent us from growing.” she said.

Hitomi raised an eyebrow, “Sensei you grew too?” she asked.

Mayumi shook her head, “No I don’t know what my stimulus is yet but I suspect I already know what it is. We’ll have to test it in the facility once we get there.” she said.

Hitomi nodded, and they drove into the hangar, Hitomi looked and saw they had a mild setup for a house there was a makeshift sink, shower, bed, and living room but that was about it. “Sensei what’re we gonna eat?” she asked.

Mayumi smiled, “Oh don’t worry we got food for today for now let’s focus on settling in… and seeing if my hypothesis is right.” She stopped the car and got out, Hitomi right behind her. They walked up to a group of scientists and doctor’s waiting for them.

One, a woman, walked up and held up a hand, “A pleasure Dr. Hasegawa.” she said. Mayumi shook her hand, the woman turned to Hitomi, “Ms. Tanaka, we’ll do our best to fill your needs.” she said, “In return I hope you don’t mind the occasional test as we figure exactly what’s going on in the world.” she asked. HItomi shook her head, “Good now doctor if you please,” said the woman Mayumi sighed then she grabbed Hitomi’s hand and lead her to the bedroom. They went up a set of stairs onto the bed and Mayumi began to strip.

Hitomi’s eyes went wide, “Sensei what are you?”

She began but Mayumi held up a hand, “Hitomi I’m positive that my stimulus is sex much like you, so we’re gonna test it out.” she said, Hitomi’s went wide and as she watched Mayumi strip she couldn’t help her dick rising up as the doctor bent down, pulled down her pants and revealed her booty. She swallowed and grabbed the makeshift clothes from sheets and took them off as well. Mayumi turned and looked as Hitomi stripped and realized she hadn’t really seen Hitomi properly before. Hitomi was standing at 8 feet tall, true, but now Hasegawa could see that something besides her height had changed. Hitomi’s balls had grown a lot, before they had been about the size of basketballs, which was around 9 inches in diameter, now they had to be 13 inches in diameter. Her dick had, by comparison, not grown a lot before it was 6 inches soft and 12 inches hard, now with it swelling to hardness the doctor saw it only grew by an inch… how curious.

Mayumi walked up stroking her down dick getting it hard as she felt the signs of arousal in her and she felt her body suddenly swell. She didn’t stop though she kept going till her dick was below Hitomi who was staring at Mayumi wide-eyed then Mayumi grabbed Hitomi’s hands and pulled down while thrusting up. Her dick sank in and as it did she felt a wave of pleasure. With the wave came more growth, her body swelling again her dick, her balls, her muscles all swelled up but she felt it strongly from her dick and balls. Hitomi moaned and as she did she too began to grow. It was confirmed sex and arousal was the trigger… at least sex was for Hitomi arousal was for Mayumi. As they fucked they grew, bigger and bigger their breasts, their butt, their limbs, their dicks and their balls all swelling. Mayumi felt the growth strongly in her dick and her balls. She felt them growing more than the rest of her body. But she didn’t care, she kept pounding into Hitomi, their position now shifted. She was standing up while Hitomi was on her back jerking off her dick while her enormous balls swelled bigger and bigger.

Mayumi felt her balls swell up and her dick start to bulge, her toes curled and her back stiffened. She felt it orgasm so close, she looked at Hitomi despite her dick head in her mouth. She stared up at her and nodded, Mayumi bore down and thrusted hard. Her dick sliding up bulged against Hitomi’s skin and then she unloaded. Because her balls were much larger the cum she expelled was much more than she ever had. Her cock pumped sperm into Hitomi for a full 45 seconds. Hitomi was also orgasming as well her cock pumping straight into her mouth which ended up in her stomach. When it was over the two collapsed Mayumi landing on Hitomi’s belly and bouncing to the side. Hitomi gasped as she finally got her dick out of her mouth. The two laid there looking at each other then they moved closer and kissed.

-Several Minutes later-

Mayumi stood against the wall, a makeshift measuring system on the wall to her left. She watched as they went up measuring her height. Finally they looked at her, “You are 13 feet tall Mayumi.” She was surprised, Hitomi had been registered at around 12 feet tall. Speaking of Hitomi was sitting on the bed rubbing her bloated belly pensively. “Now then as you know you’ll be living here we’ll need your blood samples so just relax and wait it out we’ll find a solution to this.” Mayumi nodded and went back to her precious Hitomi. She sat down and kissed Hitomi’s forehead lovingly.

She looked at Hitomi’s belly, it was then Hitomi answered a question, “Do you think I’ll become pregnant one day?” she asked.

Mayumi thought on that, “Maybe but the day you are we’ll be ready to take care of our child.” she said and she gave Hitomi another kiss to solidify her words...