"Caitlin, don't run off please!" Jennifer, 37, called out to her nine-year old daughter as she ran off onto the toy aisle in Wilkos. "You had a toy only last week." She added, as she saw Caitlin pick up a Barbie doll and some accessories.
"But mum, I want a new doll, the leg is falling off one of the others." Caitlin whined back to her mother.
Jennifer sighed, reluctantly walking over to see how much the doll was. There was no price on it and so she looked around to see if she could locate a store employee. The only one in sight was a man, further down the aisle adjusting a display of garden solar lights. "Excuse me, but can you tell me how much these dolls are?" Jennifer asked the employee, whose name badge read 'Luke'.
Luke nodded. "Yeah er... I think they're £5.99." He answered the question.
"That's nearly a week's pocket money sweetie." Jennifer said to her daughter, who started to pout.
"Please muuum!" Caitlin said.
The slight ruckus had drawn the attention of another store employee, 20-year old 'Phoebe'. "Pouty little girls don't get presents." Phoebe smiled at the young girl in front of her for a moment. Caitlin just looked up at Phoebe, seemingly mezmerised by her unique hair.
At that moment... the alien device masquerading as a toy activated... its 'area of effect' encompassing the four individuals within range. None of them felt anything, but over the next couple of days they would be noticing certain 'changes' occurring'. "Please mum can I have the doll?" Caitlin asked again, and this time her mother relented, agreeing to buy her daughter the Barbie. The pair then walked away from the two Wilkos employees.
Over the next day or two, Luke's ass would undergo a significant growth spurt, courtesy of Phoebe, his voice would become feminine thanks to a switch with Jennifer, and he would start suffering a drastic loss of height due to a swap with 4' tall Caitlin.
Meanwhile, Phoebe's ass would begin to shrink, she'd also lose her pink & purple hair, which would be transferred to Caitlin. And the young Wilko employee would also start ageing to 37 years of age.
Jennifer over the next couple of days would begin to shed years off her body as it regressed to just 20 years old, her womanly voice would drop in pitch, courtesy of Luke, and she would start losing her C-cup breasts, gaining her young daughter's flat chest.
Finally, young Caitlin would find herself growing to 6' 2" in height, her chest would balloon out into her mother's ample breasts and her long blonde hair would shorten slightly and turn to pink and purple shades.
"Muhahahahaha, good start!" Alien B laughed out, nudging his colleague.
"Yep, looks promising so far." Alien A replied with a grin.