The 20-year-old—whose mom is the billionaire tech ... "Five months ago, I welcomed a new baby into the world. Elon Musk is the father," the Elephants Are Not Birds author wrote on X Feb. 14.

Vivian Jenna Wilson, Elon Musk's transgender daughter, is opening up about her "cringe" dad. Speaking to Teen Vogue for her second-ever interview, the 20-year-old ... that her mom knew she ...