Blac Chyna and Rob Kardashian stunned followers on Instagram for Halloween this year by dressing up as each other. Chyna wore black sweatpants, an oversized black t-shirt, and the classic blue LA Dodgers widebrim hat along with socks and sandals for the classic Rob K look. Rob on the other hand sought out to poke fun at Chyna's dimensions by wearing leggings with an overstuffed backside as well as a t-shirt stuffed to appear as a huge baby bump.