Three heartbeats. Beating on their own but together. Complementing each other.
Dean's. Slow and erratic. Much like his personality. So hard to calm down. His is the one to watch for. Unexpected and often scary.
Seth's. Fast and steady. Like a hummingbird. Blinding fast as his in ring aerials. Hard to keep up with and hard to watch. The frenzied pace panics and excites.
Roman's. Slow and calm. Steady. Not letting the environment effect him. Not as exciting or worrisome as the others. But needed. His is the one that they need.
All three. Fast. Erratic. Slow. Steady. But in that moment, when the music hits, three hearts beat as one.