Sisters Kim Kardashian and Kendall Jenner made an appearance at the 2015 US Open in NYC on Tuesday. The reality TV stars were front and center supporting Their pals Venus and Serena Williams during Their tennis match. Just yesterday, Kim shared a cute photo from her date with Serena on Instagram, showing the ladies at dinner drinking tea. "Sipping and spilling the tea tonight with Serena," Kim cleverly captioned the photo.