Nick asked him to play the famous heart rate game, (the same one Harry Styles played that showed he had more feelings for an ugly purple sneaker than rumoured girlfriend Camille Rowe)...
After a few personal questions, Selena's face appeared on the screen.
"Hello Nicholas, it's Selena Gomez," she began. "I don't need to say my full name with you, but it is. So I know what you're doing, and I would like to remind you of a time where we all went to Central Park together. It was definitely over 10 years ago. I was wondering if that brought up anything for you. You know, Central Park was really beautiful. It was actually my first time. Maybe that says something? If not, I failed."
That's when Nick's heart rate went up.
"This was at a time where my brothers and I were a boy band, and we were in Central Park," Nick began in response. "And we were very private about our relationship, and she was unhappy that her Central Park experience was ruined by the fact that I walked about 20 feet away from her, even though they were taking pictures of us and obviously we were there together, I was like, 'It'd be better if we stood about 25 feet apart.' So it ruined her Central Park experience. So her and Taylor Swift — who was dating my brother Joe, but we never confirmed it — walked 25 feet behind us as we walked through the park by ourselves."
Watch the hilarious clip below: