Celebrity couples have a very legitimate scientific theory about how they know they are blissfully in love: they don't mind being followed by photographers.

And Jennifer Lopez and Ben Affleck. Exactly science.

The two were spotted doing an incredible amount of PDA in New York City this past weekend, not caring one bit that the cameras were in their faces: on September 26, they strolled the streets, holding hands, laughing hysterically at each other's jokes, joking around ...... And they made out a lot. For this very important occasion, Lopez wore the perfect fall outfit: a green plaid maxi dress and matching coat. Affleck is in a dark gray wool jacket and jeans. See for yourself:

Oops!

Affleck flew to New York specifically to see his beauties perform at Global Citizen Live, a charity concert for COVID-19 relief on September 25.

"Jennifer and Ben were apart for a few days earlier this week," a source told People (opens in new tab). 'They met in N.Y.C. yesterday. Ben wanted to be by her side and attended the event. He watched her perform; they are always supportive of each other's careers. Ben has to go to Texas next week for a photo shoot. See, I told you, they are in love.

After the concert, the lovebirds were spotted leaving hand in hand, with Lopez in an oversized "J-Lo" T-shirt, ripped boyfriend jeans, and dangerously heeled sandals. 13]

We wish these two a lifetime of happiness (in new tab (open in new tab).