Blac Chyna Shows Off Pregnant Curves on Red Carpet With Fiance Rob Kardashian

Looking swell! Blac Chyna showcased her impressive new pregnancy curves as she walked the red carpet with her fiancé, Rob Kardashian, at the launch party for her new ChyMoji app at Hollywood's Hard Rock Cafe, on the eve of her 28th birthday.

The mom-of-one took charge of her beau's looks as the duo prepared to hit the high-profile red carpet on Tuesday, May 10, "fixing his shirt" before taking his hand and walking the press line, an insider told Us Weekly.

Chyna, whose publicist confirmed her pregnancy to Us five days ago, looked blooming in a floor-length black gown with flowing panels.

"Chy opened her dress and revealed her bump," our source tells Us of the way the future mom-of-two kept pulling back panels to show off her pregnant belly.

Blac Chyna and Rob Kardashian at the ChyMoji app launch Gabriel Olsen/WireImage

Kardashian, who also wore black, appeared tired at the event. "He sat down and was wiping his eyes a lot," our insider adds.

Not that it stopped him getting into the party spirit once midnight arrived and Chyna and her pals prepared to welcome in her 28th birthday.

"All of her friends screamed, 'Happy birthday!' when it turned 12:00 a.m." our source continues. "The DJ announced that it was officially Chyna's birthday and played 'Blow a Check' by Puff Daddy."

Having celebrated with fans on stage, the couple posed for a load of selfies before heading out of the club.

As Us reported previously, the Arthur George sock designer, 29, and former music video model have been nearly inseparable since first stepping out together. Chyna has helped the formerly reclusive Kardashian drop almost 70 pounds.

Kardashian proposed to his love with a stunning 7-carat engagement ring last month and are ready to make it official. "They want to get married toward the end of the summer,” another insider told Us. “Somewhere warm.”

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