In Sims 4 Highschool, Ashley transfer to here that's why she was 18. In her classroom, She was all alone until a new classmate come in. The Teacher introduce a new classmate named Lilnerdy Simmer (He did wearing a thick diaper, but he feels fuss & heat when he was 24)

The Teacher : Class, Introduce to new classmate

Lilnerdy Simmer : H-hii classmates... I'm Lilnerdy Simmer, Real name is Azrie.. (In mind : Agh.. My diaper made me had to pee)

The Teacher : Okay class, who is public to take care of him?