United Kingdom, Jan. 13 -- Elon Musk wants full custody of his and Ashley St. Clair's son after she apologised for her previous transphobic comments.

The Space X founder has vowed to apply for sole care of 15-month-old Romulus after the influencer pledged her support to the trans community and expressed her "immense guilt" about her past remarks.

He wrote on X: "I will be filing for full custody today, given her statements implying she might transition a one-year-old boy.(sic)"

Despite his claim, Ashley didn't appear to suggest she was planning to transition their son.

Asked about her past "blatant transphobia", she wrote on X over the weekend: "I feel immense guilt for my role. And even more guilt that things I have said in the past ...