Sam's hazel eyes were dripping with empathy.

Dean saw the exact moment the witness fell under his spell and started to talk, emptying out her heart to the sympathetic FBI imposter.

.

The puppies never failed, Dean chortled.

His brother was a walking truth serum, applied not with a syringe but with a simple gaze.

.

Pity the geek had the same effect on Dean himself, he mused.

It wasn't quite so funny when he automatically surrendered to Sam's pleading stares, but then it felt good to see the satisfied smile appear on his brother's face, so whatever!