Gibbs doesn't need to look up to notice Kate's arrival; he can smell her perfume, hear her low chuckle as she greets Abby.
And then there's Tony's loud whistle of appreciation. Gibbs resists the urge to throw something at him, mostly because by now Gibbs has actually looked up and seen Kate.
Beautiful. As always.
"Looking good," Tony says. "Is that new?"
There should be a rule against that shirt, Gibbs thinks. He'll have to make one up.
Of course, this is one more thing making him reconsider rule twelve.
He smiles; maybe it's time to break some rules instead.