Nicole Shanahan, the Silicon Valley lawyer and entrepreneur who was recently named as independent presidential candidate Robert F. Kennedy Jr.’s running mate, has repeatedly denied having an affair with billionaire Tesla CEO Elon Musk. But according to a new in-depth report from The New York Times, Shanahan took ketamine at a private party with Musk in 2021 and later told her then-husband, Google co-founder Sergey Brin, that they had sex, RadarOnline.com has learned. Per the report, “During their five-year marriage, Ms. Shanahan partied with Silicon Valley’s elite and used recreational drugs i…