James
You were 5 when Harry was born.

Broom riding!!

You and Harry would often go on brooms and fly around.

You would teach Harry what you knew from James and Sirius.

Sirius
What's a sibling?

Jk.

You just don't have a sibling.

But you do have A LOT of cousins.

Remus
When Teddy was born you were 22.

Because you were both metamorphmagi you would teach him how to control his abilities.

Thx for 100 reads!!! Please request a scenario!!!