Sibling Rivalry

After a little smack talking back and forth, I think I have my brother talked into coming out for Nationals for a long awaited showdown. He lives and swims in Colorado; I live and swim in Oregon. Is there any way we can be on a relay together, i.e., is there some kind of a sibling exception to the team rule? We're no threat to anyone's records, I just think it would be a hoot to get to do a relay with my little brother.