Joe, 29, and Sophie, 23, attended the Sacramento Kings vs. New York Knicks game inside MSG.
The DNCE frontman sported a colorful red jacket over a black top and jeans.
Sophie appeared to be in the best of moods while there. She showed some basketball spirit in a black and yellow top that she paired with a very short leather skirt.
Joe and Sophie couldn't keep their hands off one another. She held onto his arm closely at one point, which he seemed to enjoy quite a bit.
Where's the kiss cam! Sophie and Joe went in for a passionate smooch while everyone around them kept their focus on the game at hand.
Joe and Sophie have been engaged for over a year now. He's the only JoBro to not be married at this point (Nick wed Priyanka Chopra on December 1, 2008 and Kevin married Danielle Deleasa on December 19, 2009).
All three of their ladyloves are featured in The Jonas Brothers latest music video "Sucker," which debuted at midnight at March 1. The trio reunited after almost a 6-year hiatus.
Do you think Joe and Sophie will finally get married this year? Sound off in the comments!