Amy thought for a moment and asked "How about we just get some drive-thru takeout? My clothes are a little small, but that shouldn't matter much." the eight year old said.
"If you say so dear..." the 49 year old replied as she got the car more into motion as they pulled into the local burger establishment only a few minutes away from their home. A few minutes later the 57 years of age between the two of the girls had been split a bit more evenly. The 12 year old trying to cover her chest which between her clothes that were not meant for someone several years younger than her. Joan asked "What do you want?" a little exacerbated about how her niece decided to wear the clothes of a toddler, and didn't even have a training bra on.
"I'll have a quarter pounder meal with a coke." Amy said as her breasts swelled underneath her top which she was trying to hide. Joan ordered the food, paid for it all while the young teen started to just become a teen. The shirt she had on acting more like a tight bra for her B-cups, and her skirt not even covering her panties anymore which had started to wedge into some of her cracks.
It took a little while for the food, and when the drive-thru window opened up and the teen minimum-wage worker dude handed the bag of food and drinks Amy underwent a growth spurt as her body got into her mid sweet 16. Her swelling tits snapping her shirt which finally gave up its losing battle.
The teen blushed a bit not expecting the tit show, and Joan the 41 year old went to the glove compartment and brought out some napkins and said "Cover yourself with those." as she grabbed the food and put them in the back as this damned younger sister in law was practically naked and... As Joan looked at the floor near Amy she was confused as there looked like a bunch of shoe/sock scraps. "What happened to your shoes?"
Amy was embarrassed and trying to cover herself with napkins and asked "What ugh... I thought I was wearing these things on a dare... and... you picked me up for that and... what was I doing with those?"
"I'm more curious how you even got those on." Joan said as she drove away from the drive-thru to get home asap. "Also Amy call home to get a towel ready for us."
Amy said "I don't have my phone on me..."
Joan annoyed stopped in the parking lot for a second and handed her cell phone to Amy and said "Call home." By the time they had gotten home...