There seemed to be a battle of the cleavages between Kim Kardashian and her momager Kris Jenner as they stepped out for a bite to eat at Chin Chin in Studio City. The fabulous family members, who could pass for sisters, were both rocking all black ensembles, which displayed plenty on front.Pregnant Kim, who continues to shun traditional maternity wear, opted for a plunging black vest with tight pants and a sweeping cover-up. While 59-year-old hotty Kris went for a black pantsuit with a sheer, bra exposing top underneath.