and lift and twizzle, so in sync, right down to their bows. And it's no wonder. Alex shibutani and his little sister, Mia, have been dancing together as long as they can remember. We both had to learn... See More
and lift and twizzle, so in sync, right down to their bows. And it's no wonder. Alex shibutani and his little sister, Mia, have been dancing together as long as they can remember. We both had to learn because birthdays at ice Rinks were hugely popular. And so to avoid the public humiliation of hanging onto the wall at such a young age, we both learned to skate. Reporter: The so-called shib sibs, one set of seven set of siblings competing on team usa in sochi. Seven -- the most in American olympic history. From double trouble snowboarding golds, to the mirror image hockey playing Lamoureux. Athletes supporting each other as only brothers and sisters can. Watch Erik bjornsen's grueling prep for cross country skiing. You can do it, Eric. Reporter: His older sister, Sadie, also in the games. Back home, they train together year round. Competition? Yeah, there is some of that too. Skier Taylor Fletcher competed against his big brother Bryan. He tweeted, "I was inspired to become an olympian following my big brother around." Still, the fletchers decided on separate rooms here in sochi. Their kind of competition not a factor for the shib sibs. It pretty much nips rivalry in the bud when you have to work together as a team. Yeah, I mean, I don't want to paint the picture that we're, like, the perfect siblings and it's great all the time. But we've learned to really work through our problems, and I think we've learned so much being in this sport. Reporter: Because they may not have a gold medal but they will always have each other. Until next time, shib sibs out. Reporter: Amy robach, ABC news, sochi, Russia.
This transcript has been automatically generated and may not be 100% accurate.