During Game of Thrones Episode 602, Tyrion acquaints himself with two of Daenerys’ dragons, the ones locked up in the catacombs, and unchains them. Instead of roasting Tyrion, Rhaegal and Viserion seemingly take to him. Is Tyrion actually the illegitimate son of Aerys “The Mad King” Targaryen, which offers another explanation for why the dragons like him. What do you think?

This could also possibly result in the happy conclusion that Dany, Jon and Tyrion could all be dragon-riders.