User blog comment:District10male/The SUPER Games!!!!/@comment-5415489-20121229143941/@comment-1975138-20121230003552

Just make them cousins, their parents would be siblings or cousins themselves, but Dani and Jason don't have to like each other. Or one or both can be adopted, then you are not really doing your brother and sister thing but they wouldn't be related. Those would make more sense, and liven up the story, and wouldn't be so cheesy.