You were one of the Riddle siblings, Tom was the oldest and you and Mattheo were twins.

You were with Tom and Mattheo being rather goofy

Mattheo: “I feel like if you say a letter you should be able to know what was after it. Like if I say J you should be like oh K.”

Tom: “no”

You: “yeah JK absolutely fucking not you better just be kidding.”

Mattheo: laughs so hard

Tom: mocking someone “Oh ArE yOu ThReE sIbLiNgs?”