"In all, with these women, [Elon Musk] had eight children: with Wilson his first child died of sudden infant death syndrome, then he had twins, then triplets."

"With Grimes he had a boy named X and a girl nicknamed Y.... [H]e had twins with Shivon Zilis, an executive at one of his companies. These secret twins were born weeks before the birth of Y. Even before this month was over The Wall Street Journal alleged that Musk had an affair with Nicole Shanahan, wife of the Google co-founder Sergey Brin, which Musk took to Twitter to strongly deny. 'I’ve only seen Nicole twice in three years, both times with many other people around. Nothing romantic,' he tweeted, noting that he’d been at a party with Brin the night before. Musk even responded on Twitter with this key data point: 'Haven’t even had sex in ages (sigh).'...  There was once a bestselling self-help book called Men Are From Mars, Women Are From Venus, which posited the rather reductionist theory that men failed in love because their 'male trait' logical geek brains could not comprehend us soft-headed emotional women. Musk, who identified himself as having Asperger’s syndrome last year, famously wants to move to Mars...."

 
From "Elon Musk, Sergey Brin and the love lives of the tech elite/The Tesla boss has denied rumours of an affair with a friend’s wife. It’s just the latest twist in his colourful story" (London Times).