Blac Chyna Flaunts Massive Derriere For Rob Kardashian's 30th Birthday Party

Blac Chyna learned her ex fiancé's mom Kris Jenner is not letting her get away with primary custody of baby Dream without a Kardashian-clan battle.
So it's no wonder the video vixen suddenly decided to play nice as Rob Kardashian celebrated his 30th birthday on Friday despite reportedly having 'no plans' to spend time with him just two days before.

The 28-year-old showcased her curvaceous derriere and shapely stems in skintight cropped leggings.

The reality star recently ended her engagement to Rob after welcoming daughter Dream on November 10.

A source close to the Kardashians says Rob wants 'dual custody of their child and Blac Chyna is giving pushback,' according to People. 

The source continued: 'They are still figuring things out but she will certainly do whatever it takes to have Dream be with her for the majority of the time.'

According to the insider, Kris and the rest of Rob's family is backing him up '100 percent and won't let Chyna get away with anything that's less than fair

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