The engaged couple cuddled up for the cameras in Los Angeles on Tuesday evening (10 May) to mark the launch of the ChyMoji by Blac Chyna app, which features more than 700 emojis created by Blac herself.
Pregnant Blac posed with her hands around her blossoming baby bump, which was covered with a pretty black frock featuring a mesh overlay.
It marked Blac and Rob's first public appearance since they announced at the start of May their first child is on the way. They had wanted to make the baby news public on US Mother's Day, but it was leaked a few days earlier. The pregnancy came a month after Rob proposed to Blac, whom he began dating at the start of the year.
Blac and Rob's pregnancy is featured among the ChyMojis, which include little versions of the couple pushing a pram, as well as a stork carrying a baby wrapped in a 'Kardashian' blanket.
This will be Blac's second child. She's already mum to son King Cairo, three, with rapper Tyga, who, in a twist, is now dating Rob's youngest sister Kylie Jenner.
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