Elon Musk‘s mysterious relationship with Shivon Zilis has found itself back in the spotlight this week as she joined the billionaire Tesla CEO during his recent meeting with the Indian Prime Minister.

The Space X founder, 53, spoke with Narendra Modi on Thursday in Washington, D.C., with Shivon, a Neuralink executive and the mother of three of Elon’s 12 𝘤𝘩𝘪𝘭𝘥ren, by his side.

Shivon’s appearance at the high-profile meeting raises new questions about her and Elon’s rumored romance, which has continuously been shrouded in mystery.

It later emerged that Elon had donated sperm to Shivon – who currently is the director of operations and special projects at Neuralink – through IVF.

Last October, reports emerged that said Shivon had moved into a sprawling $35 million compound in Austin, Texas, that the billionaire had purchased with the intention of his 11 𝘤𝘩𝘪𝘭𝘥ren all living together.

Elon has fathered 12 𝘤𝘩𝘪𝘭𝘥ren with three different women over the years. He had six kids with his first wife, Justine Wilson, who he divorced in 2008, and three 𝘤𝘩𝘪𝘭𝘥ren with Grimes.

He also posted a Tweet in which he claimed that Vivian was 𝐛𝐨𝐫𝐧 ‘gay and slightly autistic.’