That firefighter will never forget that kiss.
He hasn't. From the middle link I posted in reply #4:
The shoot went well, with the two of them dipping and kissing one another “a couple hundred times" to get the pose just right. “It was fun,” says Keane, who was single at the time. “It was a different experience.”
It strikes me as a modern take in the WWII sailor/nurse kiss.
Which the nurse ultimately complained bitterly about.
Probably won’t be a problem this time.