"Well, guess that's our cue to get to that College party." Mary sighed.
"Alright, we better tweak Kellie’s mind a little." Katie added. “Better that we have enough of a cover to let the other usses in on the secret.”
Tricia closed her eyes and focused on her wish. A slight tingle washed over her now eight-year-old body.
Karen's lengthening legs were getting a bit cramped before the Cozy Coupe began to get bigger to accommodate the nine-year-old's body. Something told Tricia that it was about to outgrow the sidewalk, so she began to push the car into the road, the strides lengthening as she and the other girls approached the double digits.
The changes were subtle as the girls became 11. Their height was slowly increasing but with few signs of puberty showing. That changed as they became 12. Katie, Mary, and Sammy could see significant growth in their chests as small mounds began to grow and their hips began to flare. Mika soon followed with small bumps of her own. As the girls reentered their teens, puberty raced forward as their breasts continued to grow. Only Claudia remained flat as she looked at her developing friends' bodies.
"God I hated these years," she said glumly. "Everyone else at least had the start of something at this age. I was almost 14 by the time I began to develop."
"At least you were cute and popular at this age," Mary said. "Besides, it looks like you're starting to catch up now."
Claudia looked down at her chest as she saw her breasts begin to swell. Happily Claudia grasped her chest as she became 14.
Karen was feeling crammed in as she grew, but sure enough, the Cozy Coupe started growing wider, allowing more room for an additional seat to grow from the left hand side of the car as it climbed upward in height. Upon further inspection, she could see a dashboard and shift stick bulge out in the space between the seats as her feet touched the floor of the Cozy Coupe that clearly wasn't there to begin with. As she leaned back, Karen felt a second row of seats bulge out from the back and pop out with a force that molded a sizable trunk matching the protruding front.
The girls continued to look over their bodies as they became 15. Their breasts were beginning to enter b cup territory and their hips were beginning to curve. What amazed them the most was how their costumes began to change.
Claudia and Mika marveled as their childish costumes began to transform. Mika's cat costume and Claudia's fairy costume began to morph into a cute teen fashion. While not risqué it was beginning to accentuate their figures as they grew. Both girls couldn't help but think the costumes would drive teen boys wild.
The changes continued as the girls became 16. Samantha's Harley Quinn costume had gone from childish to teen with a form fitting new piece. Mary's nurse costume was also beginning to change as it began to look more risqué.
"Wow," Katie exclaimed as she looked at her sexy witch costume. "I didnt think our costumes would change this much."
"This is nothing," Tricia stated, cupping together the breasts as the neckline deepened from the girls becoming 17. "Just wait until we hit college. That's when our costumes go from cute to sexy....maybe borderline slutty."
Katie gulped as she watched her transformation. The hem of her dress was continuing to rise as she became 18. Katie was now a full figured girl with perky c cups and shapely legs. Katie was beginning to grasp what the girls were talking about, they were definitely becoming sexy.
Mika was now adjusting her cat costume as she became 19. The one piece suit now exposed a significant amount of skin and accentuated the Asian girls curves. Claudia was in a similar situation. The fairy costume hugged her body and pushed up her b cup breasts giving her the appearance of ample cleavage. Karen looked down to find her B-cup bosom practically double to full D-cups that pushed out the top of her Snow White princess dress.
"This is going to be so much fun," Claudia exclaimed as she became 20. "Those college guys won't know what hit them."
"Have to Agee Claudia," Mary said as she tried to push her rising skirt down. "Just wish my costume left a little more to the imagination."
Claudia glanced at Mary and began to giggle. Mary's skirt was now a mini skirt exposing Mary's shapely legs. Mary's auburn hair cascaded down her shoulders and back accentuating the sexy white nurses uniform that hugged her curves.
"At least your stomach is still covered," Samantha said, trying to pull the shirt of her costume down. "When I picked this costume I didn't realize the shirt would ride up this much."
"Oh, come on." Tricia smirked back, hands on her swaying child rearing hips. "If it's bugging you that much, ya could've gone with the classic design."
As the girls finished their progression to 21 they took in their appearance. Mika's cat costume, Mary's nurse costume, Katie's witch costume, Tricia's cheerleader costume, Claudia's fairy costume, Karen's Snow White costume and Sammy's Harley Quinn costume had gone from childish to sexy. Their new costumes now accentuate their curves, exposed some skin and pushed up their breasts. The girls were now college beauties that would turn the head of any guy.
The car finished changing as well as the plastic became metal, glass windows manifested, and the engine fully assembled itself in the front of the car. Now the car went from being a tiny Cozy Coupe play wagon to a sleek and cherry red Jaguar F-Type sports car. It was one of the prizes Katie won in a sports competition and in her memory; it was the greatest prize of them all. Smiling, Tricia turned to her friends and opened the door of the car.
"Alright ladies, let's roll."