Maxine stepped off the bus’s steep steps. She had just returned from the main city where her parents lived and was now back in her sleepy suburban town. While she enjoyed visiting her parents, trips to the city annoyed her. Maxine was something called a second former. When transformation science became super popular, people found themselves comfortable in a secondary form and eventually ended up going through a procedure that allowed them to change into their normal form and second form at will.

Maxine was surprised that her parents were not only on board with her getting a second form but also ended up paying for it, though they didn’t join her for the countless appointments setting up her second form which she was thankful for. The only downside was that places like the city Maxine’s parents had settled in hadn’t got around to making the city more accessible for second formers with bigger bodies. Thankfully, Maxine knew of a bus stop with a changing station just around the block.

Maxine checked in with the receptionist, learning that the extra large room was currently occupied. Maxine sat down in a chair in the waiting room, the one next to her quickly occupied by a familiar face. “Hey neighbor!” Jenny said to Maxine.

“Hi Jen! I’m surprised to see you have a day off!” Maxine said, putting away her phone. “I barely even see you up this close, I’m used to seeing you fly around with a big bag of packages strapped onto you.” Maxine said, referring to the redhead’s job as a harpy mail carrier.

“I wish it was a day off, I had to go into the city and get my flight license renewed. I had to change into my normal form and get on the bus, change into my second form for the test and then change back again for the bus ride and now I’m changing back for the rest of the day. It gives me a major headache.” Jenny said, rubbing her temple.

“Wait so does that mean bird brain is a real thing? I’ve been meaning to ask but I didn’t know how to bring it up.” Maxine asked, her curiosity perked.

“Well, yes and no…” Jenny said, trailing off as she tried to find the right answer. “So it’s true that when I change into a harpy, my brain changes a bit. It’s mainly to help me with flight paths, wind currents, and other things birds need.” She explained.

“But… does it… you know, make you an-“ Maxine started to say before Jenny cut her off.

“I swear if you say airhead or birdbrain, I’m losing your mail.”

“But does it though?”

“…a little bit. I can hold onto important thoughts like package instructions and addresses but shiny stuff essentially wipes my brain.” Jenny said with a blush.

Both girls shared a laugh before Maxine broke the air. “By the way, what’s your favorite part of your change?” She asked the redhead.

“Oh I love it when my talons come in! I had the company make it so that the first change and my bird brain last. You got a favorite?”

A big blush covered Maxine’s face. “Well, mine is a special form, so I asked them to give me-“ she began to say before the receptionist interrupted them and told both girls that their rooms were ready. The girls said their farewells as they entered different rooms in the back. Maxine stepped into a room that was the size of a small apartment. Maxine set down her backpack and started pulling out different folded fabrics, she then turned away and started peeling off her clothes. After folding and putting them away in her backpack, Maxine picked up a stool from the side of the room and set it down in the middle of the room.

As she finished tying a ribbon around one of her wrists, Maxine was ready to change. She held down a tattoo on her forearm near her wrist. She felt a warm feeling pass through her limbs as dormant nanomachines flared to life and began to change her dna. A tingling sensation tickled her scalp, growing out the black strands of Maxine’s hair to reveal orange strands waiting beneath the surface. The black tips of Maxine’s hair were severed as if by an invisible force, leaving her ginger hair to grow out into its full length. The ginger hair grew erratically, forming a large curtain of fluff that grew as if it was a cloud that was still expanding. Her hair grew so much that it covered her eyes, yet she was still able to see perfectly fine. Her ears also grew outward, forming a sharp point as a light layer of brown fur coated them.

Next, Maxine’s body began to stretch upwards. The somewhat short girl was getting taller and taller while her spine’s strength  grew nearly ten fold. Her stomach also thinned slightly, getting more defined as a slight six pack formed. Her waist actually began to push outward, as if an invisible corset was being loosened lace by lace. Her hips also adjusted to line up with her waist, keeping her body as square as possible.

The next thing Maxine felt was the nanomachines massaging the muscles in her legs. She enjoyed looking down at her legs and watching her round thighs slowly chisel into pure muscle. The backs of her legs received the same treatment, her calves became toned and well defined. Maxine’s toenails began to turn black as night, wrapping around and hardening on her foot. Her feet became hooves, causing Maxine to wobble a little bit before finding her center.

The next changes began when Maxine’s rear started to swell. It was pushing out from her body, expanding and losing its curvy shape. As her rear kept growing, Maxine felt the always strange feeling of her asshole and pussy being pulled along for the ride. The growth kept making distance from Maxine’s torso, getting fatter and building more muscle mass. Soon, the growth that was meant to be Maxine’s new lower half began to weigh too much for her to hold up, even with her stronger front legs. Thankfully, the growth had reached four feet in length which was long enough for Maxine to rest it on the stool she had put down. The wooden stool creaked as Maxine set her body down on it, relieving the pressure on her legs as it kept growing.

After a little more growth, Maxine’s body reached a length of eight feet. Now at its full length, her body stopped growing outward and started growing downward. Two growths began to descend from the main body, forming into two large strong horse legs that mimicked the front pair. Black hooves wrapped around the bottoms of the growths just as they made touchdown. Maxine used one of her front legs to push the stool out of the way as her horse half finished properly forming all her new organs and other parts. Maxine felt a tingle travel down her spine as it grew in the horse half, connecting to her back legs. Maxine could now feel every inch of her horse body. With a satisfying pop, Maxine felt her waist relax which allowed her to turn almost 180 degrees so she could reach back and maintain her body.

Maxine’s face suddenly became flush as her pussy and asshole moved into proper position. Her asshole became puckered and more visible on her body, her pussy got longer and deeper, while also getting wet with arousal. Maxine felt something start flicking her privates suddenly, she twisted around to find that her tail had grown in and she was idly swinging it around.

As Maxine’s changes near their end, her excitement began to grow like always. Her hearts began to beat faster, sounding louder to her. Her tiny chest began to pulse with every heartbeat, slowly gaining mass with each pulse. Maxine wrapped her arms underneath her growing bust to support them as they swelled past DD cups. She loved how soft and tender her skin felt as they brushed up against her arms, her nipples hardening as the areola took over more of her breasts. Maxine’s breasts kept growing to a point where her arms could barely contain them, thankfully slowing to a halt at an impressive I cup. Maxine smiled with delight as her fingers groped her massive mounds, each touch shooting a bolt of pleasure through her whole body. “One last step!” Maxine said with excitement.

Maxine’s heart began to beat faster, rushing blood to one spot on her body. Right between her hind legs, just a little past her vagina, something began to grow. Bumps began to grow out from Maxine’s body, one pushing out forward from her body while two started lowering away from her body. The first bump formed into a cylindrical shape with a flat top. It snaked its way up Maxine’s underbelly, getting thicker as it got longer. It stopped growing around the four foot mark and had the girth of a soda can, what Maxine thought would be the perfect size for her horse cock. The two other growths were obviously becoming her nuts which swelled to the size of softballs, churning and filling  with cum to shoot out of her massive rod.

Maxine let out some deep breaths as her transformation drew to a close, a normal human now a majestic centaur. “Alright, let’s get dressed!” Maxine said to herself.

First, Maxine took the ribbon off her wrist and looped it under her body, stepping over it with her front legs as if it was a jump rope. She twisted around to guide the ribbon to her midsection. As Maxine was 100% in control of her body’s design, she said that she wouldn’t really need a sheath since she’d be wearing clothes most of the time anyway. The real reason however was so she could have it on display at all times. Maxine used the ribbon to keep the tool close to her underbelly mainly for privacy reasons. Once the ribbon was secured, Maxine trotted over to the folded stack of clothes. The first item on the stack was a long skirt that Maxine threw over her horse half like a sheet being laid on a bed. It was a warm yellow color that covered most of her body, the hem reaching the top of her hooves so it didn’t get caught under them. She wrapped the opening around her waist and snapped the buckle it had into place.

Her next piece of clothing was a black lace bra, a custom piece that was made to fit her massive bust comfortably. She hummed a little tune as she secured her twins in the bra, picking up a white button up shirt. She fixed the buttons up her torso, the shirt getting more restrictive as she got closer to her chest. She stopped buttoning up three buttons from the top, mainly to show off the girls and to let them breathe. The final article of clothing was a tan bomber jacket. On the back was an embroidered design of a dragon and a horse with the words “Dragon’s Steed” laid over the two animals. Maxine loved this jacket as it was an anniversary gift from her wife.

With all her clothes on, Maxine picked up her backpack and left the room. She squeezed her way out of the tight hall and back into the lobby where she was pulled over by the receptionist. “Great timing Ms.Maxine! I was just about to inform you that we pulled your saddle bags out of storage. Would you like help putting them on?”

“Yes, thank you!” Maxine said, trotting forward so the receptionist could toss the bags over her midsection. Maxine began her trek home, taking it slow to start out when she received a text.

“Hi honey! When you get back from visiting your parents, could you run to the store for me? I’d appreciate it!” Jean texted.

Maxine read through the list her wife sent her. “I'm glad I brought the saddlebag, there’s no way I could do this in one trip without it.” She thought, altering her course by a little. She reached the local supermarket after a couple minutes, the electronic ding signaling her entrance. She hunted down the items on her list, scanning them into her “cart” before putting the items securely in her saddle bag. As she approached the final item she needed, she found it on a shelf that was just a bit too tall even for her. Thankfully, a dark purple tentacle wrapped around the box and lowered it down to her. “Thanks Wendy! I didn’t know you were working today.” Maxine said to the half octopus.

“Yeah I got called in and since Jenny’s out doing harpy stuff, extra money didn’t seem too bad.” Wendy said.

“Oh yeah! I saw her not too long ago, she was just changing back into a harpy. I don’t know what else she had planned today so she might head home.” Maxine said. “I gotta get going since Jean’s waiting for me, we’ll have to do dinner sometime soon.”

“Dinner huh, that’s all?” Wendy asked, raising an eyebrow.

“We’ll see where the night takes us.” Maxine responded with a wink. With that, Maxine trotted off and paid for the groceries in her saddlebag. With no fragile items in her bags, Maxine exited the store and ran home with immense speed, the wind catching her hair as she ran.

Maxine eventually made it to her housing area and punched in the code for the gate, waiting for them to open. Maxine and Jean, and their neighbors Wendy and Jenny, lived in a special gated community provided by the government. Jean does some government contracted work which earned their spot in the community while Jenny was a fighter pilot before being discharged and becoming a mail harpy.

Maxine quickly trotted down to her house in the villa, distinguished by the large backyard with a track circle for Maxine. She made her way into the house and began to put away the groceries when loud stomping filled the air. The area around Maxine began to heat up as two big beefy arms with red scales and sharp claws wrapped around her torso. “Welcome back Darling.” Jean whispered into Maxine’s ear.

“Hello my love,” Maxine said, looking up at her dragon wife. “I missed you.”

“I missed you too, thanks for getting the groceries.” Jean said, wrapping her long tail around one of Maxine’s legs. “We didn’t get anything that needs to go in the fridge right?” She asked.

“I don’t think so, why?”

“Because I’m about to show you how much I missed you.” Jean said, picking up her wife with ease.

“Jean no! I just got dressed!” Maxine said, laughing as she was carried weightlessly to the bedroom. As the door shut behind them, the two mythical creatures were glad that the neighbors weren’t home to hear what came next.

So this is a story that's been in my drafts for a hot minute now but it's finally out! This is my new OC Maxine! Here's a picture of her done by the lovely @Lewdsona! The girl on the left is Maxine's human form and the one on the right is her centaur form. A couple more details can be found in the description of the story.