The Way Jennifer Lopez And Ben Affleck Hold Hands Is Actually A Big Deal

"When we hold hands like this we are trying to maximize the amount of skin to skin contact we have with the other person, so we can be as close as possible to one another," says Donaldson.

Sure, J.Lo and Ben are smiling and she's looking at him with this adoring look, but their hands are the biggest giveaway. Palm-to-palm touch, says Donaldson, and intertwining fingers with someone's joins some of the most sensitive parts our bodies. Plus, "research shows that touch, like holding hands, releases oxytocin, the feel-good hormone," says Donaldson.

Despite the paparazzi surrounding them, Ben and Jennifer actually are this taken with each other and not just playing it up for the cameras.