J Lo's 48-year-old boyfriend sprang into action when 13-year-old Emme needed it most after things turned chaotic while they were shopping in The Hamptons.

Affleck escorted Emme and her friend to a bookstore on Tuesday while the Love Don't Cost a Thing singer stayed behind in the car riding shotgun.

It was clearly meant to be a quick in and out situation until the paparazzi caught wind of where the duo was located.

As Affleck exited the quaint bookstore with J Lo's daughter, a chaotic scene unfolded.

Paparazzi seemingly pushed through each other to get the shot, and the Oscar-winning actor switched into dad mode.

Affleck could be seen in his lightning bolt t-shirt, placing his hand on Emme's back as he guided her past shutterbugs.

Emme appeared to be taken back by all the attention.

Sporting her blue hair, green shirt, and flannel tee, she happily obliged when Affleck