Serial skirt-chaser Leonardo DiCaprio has been caught cheating on his gorgeous girlfriend, swimsuit model Nina Agdal!
Leo, 41, was spotted heading into a London hotel at 4 a.m, holding hands with a mystery brunette after partying with Tom Hardy, his co-star in The Revenant, at the hot spot Toy Room on Oct, 16.
Bevies of beauties were also shuttled to the hotel in chauffeured car, and the revelry raged until 9 a.m.
But Oscar winner Leo and his mystery date "disappeared" into another suite according to a source, and the woman was spotted leaving the hotel at 7 a.m.!
The Wolf of Wall Street hunk was in London for a screening of his climate change documentary, Before the Flood — and just two days before his hush-hush hookup, Leo took 24-year-old Nina house huntin in Malibu!
Leo's secret rendezvous is certain to stun insiders, who believed he'd finally found his perfect match in Danish stunner Nina after dating a string of knockouts, including Bar Refaeli, Gisele Bundchen, Blake Lively and Kelly Rohrbach.
"HE's found the perfect girl," once source snitched. "After flings with dozens of the world's most beautiful women, Leo knows he's met his match, and is eager to start a family."
Another source dished: "This isn't just another of Leo's hookups. There are real feelings there."
Leo and 5-foot-9 Nina-who appeared on the 50th anniversary cover of the Sports Illustrated Swimsuit issue — dated briefly in 2014, and rekindled their romance in may.
"They lost touch for a while, but Leo recently reached out to Nina and realized the chemistry was still there, " said a close pal.
Since reuniting, the two have traveled to the Cannes Film Festival, a private island in the Bahamas and Montauk,N.Y.
"Leo's completely smitten," another source tattled.
"He's more serious about Nina than he has been about anyone in years.
He's not ready to propose or anything, but he can definitely envision a future with her."
Although Leo may not be ready to put a ring on it, the couple has been talking marriage, and even picked next Valentine's Day - his mom Irmelin's birthday — for their nuptials, according to another source.
"Leo and Nina are scouting for the perfect location while she shops for a wedding dress," added the source.
"The families are very happy for the lovebirds."
But they may not be so happy after seeing these photos — and Leo may have 'splaining to do!