> When Jeff swims, he pulls Johnny. When Jeff runs, he pushes Johnny. And when Jeff bikes, he hauls his son.

> Their bond is as strong as iron — tempered by love.

> "I mean, I'm not a fan of swimming, biking or running, which is perfect for triathlon," Jeff told CBS News, laughing. "This probably wouldn't be in the top 100 things I would select to do. ... I'm not doing it because I love it. This is Johnny's dream and I'm giving him the legs and the power to do it."

Best part of their story to me.