A young black and white border collie, mostly black with white mainly on his forelimbs, the tip of his tail and left ear, and his torso from muzzle to crotch, tossed and turned in his twin sized bed underneath blue covers. His floppy ears keep picking up a humming sound that was just outside his window at the foot of his bed, next to the study desk.
"Mmm...Hmm…-Huh?" Roni mumbled as he slowly stirred awake by the commotion outside. He hopped out of bed and went over to the window. His eyes widen when just outside was a bright conical white light illuminating the front yard. He opened the window to get a better look as well as looked up to see bright blinking multicolored lights underneath large hovering craft. Soon the white light aimed at him, blinding him as it grew intense and brighter, engulfing him completely to the point he blacked out.
When Roni came to, he found himself in a fully white room with bright lights on the plain white ceiling.
He looked down to see that he was on large bed with white bedding, but also that he was naked when his sheath was in full view. Instinctively, he covered up with his hands.
"W-where am I? Where’s my clothes?!" he said as if trying to get an answer from anywhere.
While looking around, there was a nightstand to the right of him. Across from the bed to the other side of the room had an open door to a bathroom by the sight of the sink, toilet, and shower within and next to that was a white three tier drawer. To his right there was a silver arching frame with a white sliding door. There was a control panel with some buttons next to that.
He jumped off the bed and went over to the panel, pressing various buttons in random sequences. But nothing happened. He was stuck there, saddened about his situation. He looked back at the other things in the room, curious and wondering what they might do.
He walked over to the bathroom to see what he could find.
A regular toilet with toilet paper holder lied in the back with a towel rack above it. To the left was a sink and to the right was the shower with a white curtain that was open and an unlabeled purple bubble bath bottle on the edge of the tub.
Being stuck in the room and left with few options, he decided to take a bubble bath to ease his mind a bit. He plugged the drain, turned on the warm water and dump about 1/3 of the purple bottle into the tub that emitted a nice grape scent and purple bubbles.
After a few minutes, the tub was full of water and suds and Roni began to submerge himself into the water at one end. He let the water soak into his fur while playing with some of the bubbles. Soon, he felt himself very relax to the point his eyelids were getting heavy, eventually he fell asleep, unaware of the changes to commence.
Beneath the water, his feet cracked and popped as they grew and stretched up a few shoe sizes yet having petite pedicured toes. His legs also lengthened giving him about a foot in height but taking a womanly shape with thick thighs as his feet almost reached the other end of the tub.
His pelvis cracked as his hips widened, waist thinned, and his butt gain a few pounds. His tail extended and grew, becoming a bit fluffier like a female's. He groaned as his furry sheathe receded into his body along with his dick as a pair moist lips took their place, developing a female reproductive system.
His chest widened a bit as it aged but two black puffy nipples stood erect and enlarged. Roni moaned as he developed breasts that slowly went to A to FF cups. His arms elongated into a slender and feminine form and hands with long thin fingers.
The final changes reached his head as it grew and aged, morphing to fit his new body. His muzzle lengthened and narrowed for a feminine look. Raven black wavy hair grew from his scalp until it reached mid back.
The male pup was now a grown up canine woman.
Roni stirred a bit in the tub before being fully awake. She opened her eyes, and it took a moment for her to register that something was off. Was it her or did the bathroom seemed smaller than before and bathtub a bit cramped? And why did her chest feel heavy?
She looked down to see a massive pair of jugs blocking her view, sending her into a state of shock.
"BOO-BOOBIES?! WHA-?!" she cried out, only to realize how much her voice changed to a slightly low yet higher pitched tone. She then reached down to her crotch to find something missing. "IT'S GONE!"
She quickly stood up to find herself wobbling and imbalanced due to her new height a couple inches below six feet and new weight on her chest. She leaned against the wall to steady herself. Then she stepped out of the tub and grabbed the towel to dry off.
She caught her reflection in the mirror and froze.
"Is... that me?" she said as she touched her face. She was almost as tall as her older brother Cam and looking like in her early to mid-20s. She let her hands outlined and traced every curve of her new body, shuddering a bit at how sensitive it is esp. when she squeezed her tits and fingered her new pussy. Were females always this sensitive? Before going too far, she left the bathroom and back into the main room.
Returning to the main room, she looked around, everything was normal until the sound of door sliding open caught her by surprise. Now how did that happen? Yet she could not complain as a window of opportunity opened that she could be able to escape. She became a bit clothes conscious about going out naked, but again when would there be another opportunity like this.
Exiting the room, she stepped into a long corridor that was as white as the room she was in. From left to right was a seemingly unending rows of doors on each side of the hallway. But there must be way out, it cannot go on forever, can it?
She decided to go right down the hall, passing by many doors to rooms most likely like the one where she woke up in. How many abductees like her were there? What is her captors’ purpose for doing this? Yet she still went along trying to find a way to get back home and maybe back to normal.
As she continued down the hall and a few doors down, she heard the door opening ahead that made her slow down for a bit. She waited for someone to come out, but that moment never came after a couple minutes.
Is it a trap or something? But if someone were in there, having two escapees would be beneficial. So, she decided to peek inside.
The room was identical to the one she left with everything in the same position, the bed, the nightstand, the drawer, and bathroom. Barely any difference except to the occupant that lied on the bed.
On the bed was a sleeping full grown rottweiler with black and light brown fur, black took up most of the body while brown fur stretched from his muzzle to his crotch and on his feet and hands. He had a body built like a pro-wrestler, rippling muscles from head to toe with big biceps to six pack abs to strong tree trunk legs. But most noticeable was his erect humanoid unsheathed dick that stood proudly at about nine inches with girth.
Roni couldn't help but stare at the handsome musclebound male esp. at his monster size member as female hormones activated. Her heart raced fast, her tail subconsciously wagged, her face flushed, and her pussy became moist. But she shook her head and regained composure, trying to focus on escaping.
She carefully entered in and sat on the bed. She nudged him a bit, stirring him awake slightly. But after a few more times, the male slowly got and sat up, mumbling about something. When fully awake, he was startled and shaken by the lady border collie in the room though his cock sprung up in response. Roni calmed him down a bit.
"Don't worry! It's okay! I’m not gonna hurt you."
"W-who are you?" he asked with a gruff voice.
"I'm...Roni. What's your name?"
"Russell."
"Were you like this when you were taken, or did you change?"
"I changed, miss. I ate a cookie on the table, and I grew up." he said with childlikeness. 
"Yeah, me too. I used to be a ten-year-old boy before I became a lady by taking a bubble bath. Hard to believe I know. Um, how old were you before you changed?"
“6.” He replied. 
“6!? Whoa…” 
It surprised her on how young he was and made her wonder how young the other abductees were too. Unsettling if they kidnapped newborns. 
“Well, we should really get going. You want to go home, don’t you?”
“Yeah, I miss mommy. But will she know it is me?” the pup in adult body said.
“Well, I’m sure there is a way to return back to normal on this ship.” She tried to assure despite being uncertain herself. ‘At least, he’s still male while I doubt my older brothers would recognize me.’
“Come on, we should try to get out of here. Don’t want to stay in this strange and scary place, do you?”
“Nuh-uh.” Russell said while shaking his head. 
“Good, now let’s get a going.” She said as she stood up from the bed with Russell following suit. But as soon as they reached the door…
SLAM!
“WHAT?! NO!” Roni yelled as she banged her fist on the door and tried random number sequences to no avail. “Darn it!”
She sulked back towards the bed and sat on it.
“Great, guess we’re stuck here until the door opens again… Whenever that will be.”
“I’m sorry…” the rottweiler said, thinking that he did something wrong.
“No, it’s not your fault. You did not do anything bad. Just really wanted to go home that is all…Um Russ? Something wrong?” she asked as she saw him just standing there gripping his cock as it throbbed. 
Female hormones surged up again as she could not help but ogle at it, drooling a bit and her pussy getting moist and heated. She wanted it bad.
“It’s just…my pee pee feels funny.”
“Maybe…*Gulp…I can be of help?”
“Really? How?”
“Come to bed and I’ll show you.” she said as she lied on the bed, positioning herself with her legs spread apart.
Russell did as he was told as he climbed onto the foot of the bed. He stared at her labia, blushing with feeling funny again.
“Now all you have to do is put your pee pee into my hole.” She said, spreading her labia with her fingers.
“Are-are you sure?” he nervously asked.
“Sure! Just go at it slow and gentle, okay? Think of it as a game.” Roni reassured him.
“O-ok…” he said as he approached her, aiming the tip of his cock with her pussy, basically touching.
“Alright, now just push it in, gently.” She guided him.  
He obeyed as he lightly thrust his member into her, making her yelp and moan in response as her body shuddered. He moaned as his body felt strange due to the sensitivity of his shaft, feeling kind of tingly all over. However, it felt incredibly good.
“Oooo~h…haah…t-that’s it, Russ!” she said. “Now just go in and out. Steady and slow now…”
He did as commanded as he pumped in and out of her at a steady pace. Roni wrapped her legs around him, keeping stable and a firm grip on him. Their pants and moans became louder with each continuous thrust, grinding up against her sensitive walls. Climax was near at hand.
“Unh…haah…ooh! I feel…like I gotta…pee!” Russ blurted. 
“Just…haah! Keep going! Aah…Oo~h! I-It’s fine!” she said to keep him from exiting as pressure within both reached their peak.
“Aaah! Oo~h…Russ…I-I’m! Haah….Oooo~h!” Roni moaned as she let loose a torrent of cum onto his dick, covering it in a sleeky sheen coat.
“Something’s….Ugh…Oooh! COM-…ING!” he yelled as his shaft unleashed a large wave of seed into her womb, overflowing and overspilling out of her snatch.
Russell exited out of her with a wet plop and the exhausted former kids embraced in the afterglow of their first time of sex. Sleep soon overcame them.
 After nearly few hours of sleep, Roni felt Russ licking her muzzle as he mumbled in his sleep. She woke up and affectionately licked back. The rottweiler soon woke after.
“Morning…mommy…” he mumbled as his eyes slowly opened. “Oh, Roni! So, it wasn’t a dream?”
“Unfortunately, no. We’re still trapped here.”
“Oh…so what was it that we did?”
“What we did? It was…sex.” She replied feeling a bit nervous explaining it to him. “It’s something adults do with their bodies, kinda like a game I guess.”
“A fun game! Can we do it again?” he asked with kidlike enthusiasm.
“Well, maybe …” just then her stomach growled. “Maybe after we eat. I’m getting hungry, but where are we gonna get food?”
As if on cue, across the bed and to the right of the dresser drawer, the floor opened as a platform lifted two chairs and a round table with two trays of food consisting of eggs, bacon, toasts and a small plastic cup of two gummy bears, and two glasses of juice.
“Oh boy, food!” Russell hollered as he got out of bed and headed to the table to sit down with Roni following.
At least, the captors are considerate of their captives. She looked at the spread of food that looked like a normal breakfast serving except for the gummy bears which were perplexing to her. But she brushed it off for now since satisfying hunger was priority. 
After finishing their meal, they ate the gummy bears last. Things seemed fine until after a few minutes. Soon, their bodies gradually grew warmer as if catching a fever, eventually both started to pant a little.
“Haah…Russ? How are you feeling?” she asked as she massaged her clit, leaking out some cum.
“Ooh…. Really hot. And my pee pee is feeling funny again too.” he replied as he started to stroke his now erect throbbing member.
“Let’s… haah… Get to bed and-and have sex again, yeah?”
“Okay!” Russell said eager to play the adult game once more.
“Let us try another position this time. You be on the bottom while I’m on top.”
Russell did as command on lied down on the bed first while Roni knelt and got on top of him with her pussy over his dick. She then lowered until the entire shaft fit in like a glove. Roni did most of the work this time around as she went up and down like a teeter totter on his cock with Russell holding onto her hips. After riding him cowgirl style longer, pressure within them welled up to another orgasmic session. 
“Ahh….Oooh…Russ, I’m…CUMMING!” she cried as she deluged his dick in with her nectar.
“Me…ah…TOO!” he barked back as his cock let loose a stream of cream into her. 
The two panted as Roni laid on top of his chest, falling back to sleep.
Days turned to weeks as it became routine for the ex-kids of eating, sex, and sleep. They tried many sex positions even having sex while showering to break up the monotony. Another way boredom was quelled by how sometimes a tv monitor appeared through the ceiling, playing the latest kids movie or popular cartoon and sometimes even bring down controllers for video games. 
But as weeks turned into months some things were becoming apparent esp. with Roni’s baby bump growing in along with the other noticeable symptoms as morning sickness, unusual food cravings and bigger milk leaking tits. Russel noticed this too but seemed puzzled, unknowing about how babies were made. So, she decided to talk to him about it one time after sex. She laid exhausted into the rottie’s arms with her head on his chest.
“Hey, um, Russ?”
“Yes?”
“Do you…know where babies come from?” she asked.
“Well, mommy told me that the stork delivers them. Is that true?”
“Well, Russ, it’s not true. You know what we have been doing with our privates? Sex? That is how babies are made. And…and I think I’m pregnant. I’m having a baby.” She said, gesturing to her belly by placing a hand on it.
“Wait…you mean…?”
“Yeah, we’re mommy and daddy. For real.” 
“Wow….” The rottweiler said as he stared wide eyed up at the ceiling for a moment before looking back at her. “Do…do you think I be a good daddy?”
Roni was taken aback of the question as well as the former kid’s seemingly sudden acceptance of being a dad. But she softened up a bit and smiled warmly back.
“Y-yeah, I think you will be. And I’ll help definitely.” She said assuring, slightly nervous. 
Things have been routine for the next couple of weeks until one day where everything changed.
“Mmm…hmm…”
Roni tossed and turned in bed slowly as sunlight poured over her, just before a realization struck her. Wait, sunlight? The room they stayed in for all this time didn’t have any windows nor close to any sun as they were in space.
Her eyes shot open and sat up in bed to see unfamiliar surroundings. First, the bed she and Russel were in was the same size but different than the one on the spaceship as the sheets and blanket were magenta colored with wooden frame and bedpost. The walls and ceiling had a bright burgundy tint to them along with a ceiling fan on top. Across the room was a flatscreen TV on a shelf of DVDs/Blu-rays, white vanity oval mirror drawer with some accessories and makeup and to the right of it was a door opened ajar leading out to some hallway. To the left of the bed was a bathroom with blue walls, opaque glass shower stall, toilet, and sink. To her right was a small black nightstand with a lamp on top with a window next to it. 
Looking outside there seemed to be a neighborhood, a cul-de-sac to be more precise with identical looking two-story houses that were painted with various colors from red to blue to yellow to green and more with various trees grown in between to separate them. It seemed normal with the sun shining in the blue sky as if they were back on earth, but the odd thing was in the middle of each cul-de-sac was a long, tall steel pole with speakers pointing in all directions.  
“Mmm…hmm…*Yawn…”
She looked to right beside her to see Russell slowly getting up. 
“Mm…. Morning, Roni…” he said while wiping sleep from his eyes as he sat up. When his vision unblurred and saw his new surroundings, he was taken aback.
“Whoa! W-where are we? Are we…? Home?” he asked as his eyes looked around.
“Well, we’re in a home all right, but definitely not a home I’m familiar with.”  
“Yeah, it doesn’t look like my house either.”
“We should….unh!” Roni said while steadily getting up from bed with hand on her eight-month pregnant belly. “…take a look around.”
“Okay.” he simply stated.
They exited the master bedroom into the second-floor hallway with similar burgundy paint job. The rest of the second floor had a bathroom, a closet, a guest room identical with the master bedroom, and most surprisingly to them another bedroom with peculiar décor and furniture. It was a babies’ room that was split down the middle with blue on the left and pink on the right as if to indicate or know what babies that Roni will be having. A baby blue crib and toy box full of boy toys on the left side while right had similar items for girls. In the back was a diaper changing station with a pile of boy and girl themed diapers. 
Afterward, they went downstairs to explore the house’s first level. Going downstairs they immediately entered the den or living room where brown leather three-seater sofa in front of another entertainment system like in the master bedroom with flat screen TV, shelf with a selection of movies and then some. There were a couple of large ferns in red pots that sandwiched the system on both sides.
Behind the den was the kitchen that had the usual accommodations with cabinets, counters, microwave, dishwasher, fridge, and stove/oven. There was a square wooden table with a couple of chairs and a couple of highchairs along with a pantry. Checking the fridge revealed an abundance food and drink from produce to dairy to meat to juice and everything in between. The pantry held plenty of more food too such as cereal, canned goods, chips, etc. To the right of the counters and cabinets, a door led to white fenced backyard with a pool.
The two former pups were perplexed onto how they got there but decided wait on that as hunger settled in. They ate a simple cereal breakfast and talked about what to do next until a loud blaring sound from the speaker pole outside interrupted them. Startled, they jumped a bit from their seats and headed outside into the cul-de-sac’s center. 
But they weren’t the only ones as other anthro canines of various breeds around their now age came out of surrounding houses to see what the commotion was about as well, also naked. Roni and Russ talked to many of them, discovering that they used to be kids like them as well even as young as two years old! Like Roni there were others that had gender change treatment and others who were just as pregnant too. However, their chatter was interrupted by the speaker pole as they turned their attention towards it as a booming voice.
“ATTENTION ALL CANISAPIENS. YOU HAVE BEEN SELECTED FOR SPECIES PERSERVATION. AS YOU’RE AWARE THAT ALL OF YOU HAVE AGED AND EVEN SWAPPED GENDERS. BUT YOUR LIFESPANS HAVE BEEN EXTENDED AND YOU’LL AGE SLOWER AS COMPENSATION. WE WILL PROVIDE ALL OF YOUR NEEDS OF HOUSE, FOOD, DRINK, ENTERTAINMENT AND OTHER PROVISIONS. ALL YOU NEED TO DO IS SIMPLE: LIVE, SURVIVE AND PROCREATE AS MUCH AS YOU CAN. THAT IS ALL.”
After the announcement, the ex-kids clamored amongst themselves again, wondering what to do. But some of the ‘older kids’ managed to take control and kept everyone leveled headed, calming the scene. Eventually, they had to accept their current circumstances and did what the voice said to keep living. The members of this newly formed neighborhood were getting to know each other since they’re going to be living there. Soon, the crowd dispersed with many going their own way with Roni and Russell heading back into the house they woke up in. They plopped down onto the couch.
“Well, at least, we’re not living in a single room anymore. And have more room when the pups come in.” Roni said, caressing her pregnant belly.
“Yeah…” Russ agreed. “So, Roni… do you want to have sex again?”
“I thought you never ask.” She replied, nuzzling his neck. “How about we watch a movie as we do so? Now that we have a big selection to choose from. And we could do it in the pool later too! Even invite over our new neighbors.”
“Oh yeah!” he said with tail wagging in excitement.
Both rose from the sofa, locked lips for a moment before heading upstairs to do bedroom business.

The End