She was shocked.
There was a date in her calendar and she wasn't prepared!
After she realized that, she picked up a few clothes that looked ok.
While putting on her clothes, she noticed, that her breasts still were smaller that A cups. This was frustrating for a girl in the middle of puberty. She still hoped, that they would growth bigger.
However:
She got to the meeting place in clothing that looked very normal. In fact: it was normal. She wore the same Hotpants and crop top as in school and shows a lot of skin.
There was Jonas. A guy taller than her and mega nice, allowing most of the things.
After having a nice dinner, she decided to switch roles and give him the ring.
He put it on and it locked in place.
Wanting to try the rings, Emely imagened him growing just a little bit larger.
And so he did, growing from 1,80m to 1,85m in a few seconds. She quickly undid the action, before he noticed.
They later payed for the food and got home, having their first kiss in progress.
As soon as he got home, he fell asleep and had a dream.