Board Thread:Questions and Answers/@comment-29391767-20150219182729/@comment-26086764-20150219205307

They became friends because.. One day tails was getting bullied and they broke some contraption of his. Later tails saw sonic running and instantly admired him. Tails followed sonic keeping just out of sight but sonic was aware and just ignored him. Tails came across the tornado and he couldn't help himself. Just as he was finishing the paint job sonic came back. Impressed by both tails ability to keep up with him and his expertise with machinery tails became his sidekick who grew to have an inseparable bond.