Board Thread:Speculation, Theories, and Rumors./@comment-6362372-20131024111232/@comment-26040598-20150101214711

It's always possible. They never really seemed interested in each other and they probably don't think of that stuff because they're just kids. I personally consider Cosmo and the whole season 3 of Sonic X non-canon because it was supposed to end before that and it's a show and not part of the canon game storyline. I think if they ever grow up they'd make a good couple due to similar abilities and there being not any other matching existing female characters for Tails.