Blac Chyna spent Sunday night with a famous man — and it wasn't her fiancé Rob Kardashian.

The mother-of-two was photographed on a private plane with Khloe Kardashian's ex French Montana following her appearance at Kardashian-favorite 1 Oak nightclub in Las Vegas, where she showed off her impressive post-baby body.

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Wearing an all-white ensemble with a scarf wrapped around her head, the 28-year-old beauty lounged on the wing of the plane with the "Lockjaw" rapper.

"Young legends," French captioned the pic along with a wave emoji.

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As expected, fans reacted strongly to a photo of Chyna with another man in the Kardashian circle.

"Wow…drops.. Rob and Keeps it Moving….lmao," one follower commented while another added, "Don't she got a newborn wtf is she doing here."

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Chyna welcomed daughter Dream Kardashian with the KUWTK star this past November before her Instagram was hacked a few weeks later, prompting her split with Rob, 29.

"I'M DONE," she wrote on social media. "This entire year, I have done nothing but help Rob! It's so sad and pathetic how low he'd stoop to cover up his personal issues. Rob is mentally ill and refuses to seek help… I have done nothing but help and loved him from the beginning! I got him out of Khloé's house, helped him lose all the f–king weight for him to do nothing but gain it all back."

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However, the split was only temporary as the controversial couple was spotted together during New Year's Eve.

Meanwhile, things are getting serious for Khloé, who dated French back in 2015, and her new boyfriend Tristan Thompson.

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"Khloé is madly in love with Tristan and has already moved into his Cleveland home,” a source revealed exclusively to Life & Style. ""She said she was upset at how cold it was in Ohio, but she added that it was totally worth it and that Tristan would keep her warm.”

We wonder how Rob feels about this! For a look back at more famous Kardashian exes, click through the gallery below!