They were about to engage in some sexual activities right in school. Can you believe that? Right in their academy. Anne couldn't hold herself, she wanted them to do it right in that same corner.
Now, they don't plan on having full sex, they just wanted to do some sexual things. Those sexual things involve kissing each other, Anne sucking his cock, and so on.
After break hour, students were strolling out of the cafeteria, those that had finished eating. Many teachers had already left the cafeteria by then 'cause they were always served first by the cooks.
We can say the break hour was still ongoing when Aiden, Oliver, and Ava walked out of the cafeteria. Students were still in it eating, so we can say the break hour was still ongoing.
As the three of them were walking on the compound heading toward their classroom, Aiden sighted Anne signaling him for sex again...she was standing on one side of the compound.