Are they a person?
Is it an object?
Are they a pet?
Could you live without them/ it?
How does it / do they intertwine with your life?
Write about your most cherished thing/ person in your life. What a typical day looks like with them/ it, and if you can what your favourite memory is related to them/ it.
No restrictions on word count or humour as long as it is appropriate for a child reading over my shoulder.
Good luck, and most importantly,
HAVE FUN!