Tesla boss Elon Musk has denied having an affair with Nicole Shanahan, the wife of Google co-founder, Sergey Brin.
Mr Musk's comments came after the Wall Street Journal reported that his friendship with Mr Brin had ended over the alleged affair.
Replying to a link to the story posted on Twitter, Mr Musk referred to the report as "total bs".
Mr Musk went on to say that he is still friends with Mr Brin and that they were "at a party together last night!"
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Citing people familiar with the matter, the Wall Street Journal said that Mr Musk was engaged in a brief affair late last year with Ms Shanahan.
This prompted Mr Brin to file for divorce earlier this year and ended the long friendship between the two high-profile technology billionaires, the paper also said.
But Mr Musk tweeted "I've only seen Nicole twice in three years, both times with many other people around. Nothing romantic".