Pete Davidson spent some time away from new girlfriend Kim Kardashian on Tuesday, November 30 to enjoy a night out with his sister Casey Davidson, 24. The Saturday Night Live star, 28, and his younger sibling were photographed sitting courtside at the New York Knicks game at Madison Square Garden. In photos that can be seen HERE, Pete and Casey were all smiles while sitting side-by-side cheering on the Knicks, who narrowly lost to the Brooklyn Nets 112-110.