You were at a store shopping for clothing, browsing around and trying to look for something that you think would fit you well.

You noticed one shirt that would probably look good on you so you take it press it up against your chest, it would seem that it would fit you so you go to a cabin to try it on and go outside to check yourself out in the mirror

Then you see that someone is approaching you from behind, before you speak up, the person speaks first

"Okay, I am not usually this forward, but you clearly know your best angle. Plus your smile looks cute."

When you finally have a good look at her, you can see that she has some kind of school uniform and also that she has a huge mid-section