Are Sonic and Tails brothers?

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Tags

1. #adventures
2. #nickname
3. #tails
4. #sonic
5. #brother
6. #propellers
7. #using
8. #deuteragonist
9. #sidekick
10. #prower
11. #better
12. #known
13. #miles
14. #adopted
15. #younger
16. #faithful
17. #hedgehog