His family couldn't get him out of the house, but Rob Kardashian's new lady love Blac Chyna knows how to do it -- and with his credit card handy!

On Friday Rob and Blac went to Chanel in Beverly Hills, and it seems like Rob accidentally left his credit card in the store, because a sales associate came out to hand deliver it to the couple's Bentley. Sure, it's Rob's credit car, but who's the one actually paying for this -- Kris? Kim?

In their mad rush to get going, Rob and Blac almost hit a pedestrian, so hopefully he takes it easy! Earlier this week Rob played the supportive boyfriend role as Blac worked it in a bikini for a photo shoot, so it seems like he's once again comfortable being photographed and seen in public. After staying out of the spotlight for the last two years, you'd think he'd keep a slightly lower profile, but after all, he's a Kardashian...