Rob Kardashian, 27, has once again sparked rumours that he has a secret child.

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Earlier in the summer, the Keeping Up with the Kardashians star shocked fans when he tweeted: “Happy I got my Son with me for the 4th tomorrow !! Can’t wait to watch fireworks with my little man ! Hope everyone is safe!”

He deleted it shortly after replacing it with messages that he was joking and even had his mother, Kris Jenner, convinced he had a love child.

“Those who know me know I play and I do NOT have a Son,” the floundering sock designer wrote.

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“Y’all got my mama emailing me asking if I have a Son lol goodness hahaha. GOODnight.”

This weekend, however, Kim Kardashian's little brother again posted a message to his five million followers about having a son.

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According to Radar Online, he wrote: “I’m about to go pick up my Son from the port and can’t wait to watch a great movie with him. Suggestions anyone ??? He’s 6.”

The message has since disappeared from Rob's Twitter page, leading to many suggesting that he either removed the post or his account was hacked.

The star has not posted a retraction to the post, or mentioned that it was a joke, as he did last time.

Do you think Rob Kardashian has a secret baby mama and 6-year-old love child?