The pair were all smiles as they sat between actor Ben Stiller and singer Jordan Sparks while watching the Memphis Grizzlies narrowly beat the home team.
Davidson, 29, donned a dark-blue jumper with complementing navy trousers and a pair of black sunglasses for the outing while Ratajkowski, 31, sported a brown North Face coat with jeans and knee-high boots.
The former SNL star appeared in good spirits as he was spotted chatting to Stiller and his wife, Christine Taylor.
Davidson and Ratajkowshi were first linked earlier this month when celebrity gossip account DeuxMoi posted an alleged sighting of them “all over” one another in Brooklyn.
Emily Ratajkowski and Pete Davidson at a New York Knicks game
The anonymous submission read: “Can’t believe I’m saying this anon pls. Emrate and Pete Davidson on a date in Brooklyn together.
“Holding hands and all. His hands were all over her and they’re clearly hooking up.”
In the following weeks, photos emerged of the pair arriving at Davidson’s residence.
Previously, Ratajkowski spoke on Late Night with Seth Meyers last November about why so many women find Davidson so attractive.
She shared at the time: “Obviously, women find him very attractive. Guys are like, ‘Wow. What’s that guy got?’ And I’m like, I mean, he seems super charming.
“He’s vulnerable. He’s lovely. His fingernail polish is awesome. He looks good! He’s great! Good relationship with his mother. We love it.”
The Gone Girl star split from her husband, Sebastian Bear-McClard, in July amid claims he was cheating on her. The pair share son Sylvester, one.
Following their break-up, the actress was last believed to be dating DJ Orazio Rispo, whom she was seen passionately kissing in NYC in October.
Meanwhile, the comedian amicably split with Kim Kardashian in August.