When they met:

Mother: Oh hello, is your son in my son's class too?

Mama: Oh I think so, oh maybe they should be friends!

Mother: Oh! What a brilliant idea!

*A minute later*

Mother: Robin this is Oscar, say hi Robin.

Robin: Hello, I am Robin.

Oscar: ...

Mama: This is Oscar. Oscar is just a few years younger than you.

Robin: Huh? Just a few years younger than me? Then how are we in the same class?

Mama: Well, my son is really smart so they wanted to put him in a higher grade.

Robin: Wow! That's so cool!

Oscar: ...

*Blush*

Mama: Well... there is one down side though..

Robin: What is it?

Mama: Oscar has a disability.

Robin: Oscar has a disability?

Mama: Yes, he does, and it is very unfortunate

Robin: What's his disability?

Mama: Oscar is unable to speak.

Chapter 1: Growing Up Together