Brin, who was mates with Musk, not only divorced his wife but told his financial advisers to flog his investments in Musk's companies. Musk apparently said he was sorry.

Sources told the Wall Street Journal that the affair began in December last year in Art Basel in Miami. Brin and Shanahan were apparently separated, but still living together at the time.

Musk, who is currently being sued by social media platform Twitter to force him to complete a US$44 billion takeover deal, was separated from his former partner Grimes. The pair had two kids before they split in September, the second of which was born via surrogate the same month as the affair.

Musk had twins with Shivon Zilis, a top executive at his brain-chip startup Neuralink, in November 2021.

All this happens just days after it was announced his father Errol had a second child with his 35-year-old step-daughter, Jana Bezuidenhout. Musk Senior was married to Bezuidenhout's mother for 18 years and raised Jana since she was four-years-old.

He told The Sun he had also been asked to donate sperm to high-class women to "create a new generation of Elons". It seems once you create one it is self replicating with anything with a pulse.