Kim Kardashian’s Kids ‘Love’ Lewis Hamilton: ‘Excited to See Their Mom Dating Someone Who’s So Cool’ (Exclusive)

Kanye West assumed that Kim Kardashian’s relationship with Lewis Hamilton would be nothing more than a fling and that the British racecar driver, 41, would’ve moved on to someone else by now, a source tells the National Enquirer. But the “Can’t Tell Me Nothing” rapper, 48, was wrong.

“It’s now becoming very apparent that they’re well on their way to being a whole lot more than that,” reveals the source.

Per People, Hamilton joined the reality TV star, 45, and her three younger children, sons Saint, 10, and Psalm, 6, and daughter Chicago, 8, on their Spring Break vacation in Tokyo ahead of his upcoming race in the Japan Grand Prix.

West, who also shares daughter North, 12, with Kardashian, is “vowing to put a stop to it … but as usual, it’s ultimately a load of hot air,” says the source, dismissing talk of lawyers getting involved. “Kim’s done nothing wrong. Plus, the kids already love Lewis. They’re super excited to see their mom dating someone who’s so cool and talented.”

West’s response to his ex-wife’s romance isn’t doing him any favors with current wife Bianca Censori, either.

“What Kanye doesn’t seem to grasp is that all his ranting and raving only makes the situation worse for him,” the Enquirer’s source explains. “He comes across as this weak, angry man and suffice to say, it’s a massive turn-off for Bianca, who’s been one step away from packing her bags now for longer than anyone can remember.”

Adds the source, “This latest childish tantrum by Kanye may well push her over the edge.”