ATLANTA, GA - MARCH 27: Blac Chyna and Rob Kardashian at Onyx Nightclub on March 27, 2016 in Atlanta, Georgia.  (Photo by Pri
Prince Williams/WireImage

Rob Kardashian and Blac Chyna are expecting! The couple announced today (May 6) that Chyna is pregnant with their first child together—a.k.a. the heir to the Kardashian name, since Rob is the only son of the late Robert Kardashian.

Kardashian posted an Instagram of an animated Chyna, complete with pink hair and giant belly, on Friday (May 6).

This is the first child for Kardashian, 29, but the second for Chyna, 27, who has a 3-year-old son, King Cairo Stevenson, with rapper Tyga. Rob's relationship with Chyna is a plot point on the current season of Keeping Up with the Kardashians, and, spoiler alert, his sisters have not been too happy about it. Tyga is currently dating Rob's half-sister Kylie Jenner.

Tyga has already given his congratulations, via an Instagram comment.

Chyna, born Angela Renée White, and Kardashian got engaged on April 4, 2016.