He's not the best dancer, but neither is Aziraphale. It took him a long time to ever try dancing, as Angels Don't Dance, and when the particular dance he learned and thoroughly enjoyed got out of style, he was very put off about it. It's been a very long time, so one could say they're at equal levels.

But it's not the dancing. Or even the music. Certainly not the location or the people around them - it's this. It's the moment. It's Aziraphale's hand on his shoulder, it's Crowley's hand on his waist. It's the drinks, it's the chatting. It's a slowing of time.

He's distracted, looking up at him, but he blinks and takes a moment to think. "You know..." Brows furrowed in thought. " I don't quite know, really."

One of those Ineffable things, you know?