Rob Kardashian, 33, is looking better than ever! The Arthur George founder joined sister Kim Kardashian‘s lavish 40th birthday trip to a private Polynesian resort just weeks ago, and appeared to be in good spirits in a video posted by the SKIMS CEO. Titled “Birthday Vlog,” Kim shared the six-minute clip of edited moments from the vacation, with appearances by the KarJenner gang and BFFs like Lala Anthony. We couldn’t get over how good Rob looks since his dramatic weight loss!