Grimes says her 2-year-old son with Elon Musk says the f-word when his 'fake' rockets fail to take flight

• Grimes said her two-year-old son with Elon Musk gets frustrated when playing with his toy rockets.
• The singer tweeted that her son accuses her of "trickery" when he realizes they are "fake".

Elon Musk's two-year-old son appears to have the same fascination with rockets and going into space as his father.

Grimes, the mother of two of the SpaceX CEO's children, tweeted that their son gets frustrated when playing with toy rockets: "'fuckin rocket is too fuckin heavy' – my 2 ur old son after his toy rocket failed to reach orbit."

After being told by a Twitter user to buy her son a new toy, the Canadian singer responded: "He has destroyed them all because he doesn't realize they aren't real and so he rips off the boosters and whatnot trying to emulate a real rocket, then accuses me of trickery for giving him fake rockets and becomes inconsolable."

"Yes he says rocket landing about 200 times a day. It's very heartwarming," she added.

The world's richest man had two children with Grimes, including their daughter Exa Dark Sideræl who was born via surrogate last December. Their son, X Æ A-12, was born in May 2020.

Musk has fathered at least nine children, including two with one of his top executives, Shivon Zilis, who works at Neuralink.

His other children include Griffin, Vivian, Kai, Saxon, and Damian.

A boy was born to Musk and author Justine Wilson in 2002 but he died of sudden infant death syndrome at 10 weeks.

The tech mogul has repeatedly said that he regards declining birth rates as one of the greatest threats to civilization.

Mark Cuban texted Musk after the birth of one of his children asking how many offspring he was planning to have. The billionaire responded: "Mars need people."