When JJ tearfully embraced Henry after an UnSub tried to kill him.
While Will was trapped in the building, chained to a bomb, JJ rushed home to find one of the bank robbers in her house attempting to kill her son. JJ beat the living daylights out of her and ran to find Henry. She saw him shaking in fear in a closet and pulled him into the tightest embrace.
Season 7, Episode 24 “Run”