You got to the dinning table for breakfast and decided to eat a bit as Courtney. Looking at your body stretched into a teenage body you saw that it seemed to look more like your foster parents. You imagined it was because she wanted to be part of this family entirely. At the end of the day it was just one more thing Courtney was changing.
her father asked "So Tia you going out with your friends again today?"
Courtney nodded and said "Yes, we were going to go to that new park. One of my friends is the daughter of the owner so we're getting in for free."
he said "Sounds like a good time." You then spotted Courtney looking at you then Courtney's father then said "why don't you take Courtney then? It would be good for you two to spend some time together as well."
her mother then said "But she's just--" suddenly your vision jumped up a few feet and then her mother continued "-- a little bit shy."
something in your mind had you say "It's fine, it sounds like a good time and her friends are pretty inclusive... That is if Tia and her friends would allow me."
Tia nodded and then said "Actually my friend asked me to ask Courtney to come along. So it's more than fine." she then smiled as the two of you finished your breakfast. The two of you then went to your room to get ready. In the room Courtney stripped in front of you out of her pajamas to get in her regular clothes and you followed suit looking at your own older teenage body. It was starting to develop with A-cup breasts and a slightly big butt but still nothing too amazing.
You asked "So having fun with my powers?"
Courtney said "Yeah a little, I mean now we're going to an amusement park and we can get everything tailored to how we like!"
"which is why you made me a young teenager?"
You started putting on your A-cup bra when Courtney said "Yeah I guess you may be a little flat." then all of a sudden your boobs expanded to D-cups flinging your A-cup bra out of your hands. You just kinda stood there as Courtney started laughing and had your clothes materialize around you. she then said "Well that was silly, but come on let's get to the amusement park our friends should be here soon!" Then the doorbell rang. A quick ride latter Courtney just kinda willed her friends away so you two could have fun together at the amusement park where.