Elon Musk says it’s his duty to “make new humans.” Now, a WSJ investigation suggests he may have fathered more than the 14 children already known, with sources claiming the real number could be significantly higher. The report also describes how Musk keeps those details under wraps.

At the center of it all, per the report, is longtime fixer Jared Birchall, who runs Musk’s family office but also handles the logistics of Musk’s growing family, including by drafting NDAs and serving as a sounding board for the mothers of some of Musk’s children.

For example, Musk reportedly asked conservative influencer Ashley St. Clair to sign a restrictive agreement after she gave birth to their son last fall. The deal: $15 million, plus an additional $100,000 a month until the baby turned 21 in exchange for her silence. She refused; now the deal gets worse with every perceived betrayal, she says. (She told the Journal that Musk’s team sent her just $20,000 after the outlet reached out to Musk for comment about its article.)

As for Birchall, who is also the CEO of Musk’s brain-implant venture Neuralink and a partner at Musk’s AI venture xAI, managing Musk’s private life might just be a third full-time job. Per the Journal, in one two-hour call with St. Clair, Birchall told her that going the “legal route” with Musk “always, always leads to a worse outcome for that woman than what it would have been otherwise.”