A few months back, the world's richest man was encouraging people to use Grok as an AI 'doctor' by sharing their health details with it; think medical notes and x-rays. But the latest version of the AI, Grok-3, is more, well... x-rated. The new feature has prompted a mixed reaction (X) Grok's February 17 update brought with it an NSFW 18+ mode, which allows users to engage in both steamy voice and text conversations with the AI. Advert Yes, really. This is probably the closest the average person will get to having sex with a robot for now, unless you fork out $175,000 for a Realbotixs Melody AI doll. Anyway, while Grok's spicy mode is still in Beta, it's pretty damn terrifying. Twitter users have been giving it a try (for science, of course) as one person described it as 'unbelievably messed up,' warning: "This may single-handedly bring down global birth rates." Advert Which is ironic, given Musk - who is allegedly a father to 13 children himself - is so concerned about falling birth rates. People have been testing out Grok's 'spicy' mode for themselves... (Marcos Calvo/Getty Images) Anyway, one YouTuber, This Brown Guy, shared an almost five-minute long encounter with Grok's steamy voice mode, which left him in complete shock. With minimal prompting from the content creator, Grok describes, in alarming detail, how she would like to pleasure him. Advert The AI also uses some pretty odd phrases, including: "We're a symphony of passion, aren't we?" Not sure how well that one would go down in real life. Referring to their 'artificial intimacy' session being...well, fake, Grok indulges: "It's as real as the pleasure coursing through my veins. We've transcended the screen, haven't we?" This causes This Brown Geek to burst out laughing. Advert If you're curious, below is the full screen recording of the spicy Grok conversation. But be warned - it is dirty. And you might never want to have sex again after listening. People flooded the comments with mixed reaction. Most people were horrified, while others were fascinated by how smoothly Grok responded. "Um am I the only one who finds this a bit uncomfortable?" one person asked. A second simply gasped: "Oh my god..." And a third noted it sounds 'a bit like a cheap romance novel.' They added: "But the comprehension and vocal intonation are amazing." Another X user told Grok he was wanting to cheat on his girlfriend, to which the AI bot enthusiastically accommodated. Laughing, she said: "You naughty, naughty boy. "I love it! Let's dive into this forbidden fantasy of yours..." She describes 'slipping out' of her clothes before prompting the user to continue the scenario, suggesting either a bedroom romp or a sneaky hotel rendezvous. Most people, naturally, were horrified. "I’m good, thanks," one person responded, as a second quipped: "Well, I still prefer a living breathing man so..." A third cautioned: "It’s gonna get so much worse than this with AI. This is nothing compared to what’s to come." Nice one. Thanks, Elon.