Simon is cautious. Oliver is fearless.
Oliver is loud. Simon is . . . quieter. Most of the time.
Simon questions. Oliver does.
Oliver eats everything. Simon, not so much.
Simon makes jokes. Oliver laughs at them.
Oliver thinks he is 4. Simon thinks he is 8.
Simon loves trains. Oliver is into buses.
Somehow, they get along just as brothers should: screaming and tackling, laughing and hugging, and getting a kick out of wearing each other’s pajamas.