Reality star Scott Disick was photographed earlier this week out on a lunch date with his new fling, model Christine Burke. But in an awkward twist, the 20-year-old model looks shockingly similar to fellow model Kendall Jenner - the younger half-sister of Disick's ex-girlfriend Kourtney Kardashian.

This isn't the first time Lord Disick and Burke were spotted out together. The 32-year-old has reportedly been hooking up with Burke for the past few weeks. They spent time together earlier this month at Disick's friend and "Girls Gone Wild" founder Joe Francis' vacation home in Mexico - which is where Disick met Kardashian, his former longtime partner and the mother of his three children.

"It's very new, but Scott and Christine are dating," a source told "Entertainment Tonight." "The family has known about her before these pictures came out."

Disick and Burke were photographed leaving Los Angeles restaurant Nobu Malibu Tuesday and the leggy model looked just like a Jenner doppelgänger, with similar long brunette locks parted down the middle and nearly identical eyebrow, nose and mouth features. Burke strolled alongside Disick in the shots, wearing short, belted high-waisted black shorts, a Rolling Stones T-shirt and black booties. Disick dressed equally as casual with a plain white crew neck T-shirt, ripped jeans and boots.

Kardashian, 36, and Disick split last July after he was spotted cozying up to his ex-girlfriend Chloé Bartoli while vacationing in the South of France. The former couple met in 2006 and dated on-and-off for nine years. They share 6-year-old son Mason, 3-year-old daughter Penelope and 15-month-old son Reign. Their complicated relationship - stemming from Disick's substance abuse issues - has been a main storyline on Kardashian's hit E! reality series "Keeping Up with the Kardashians."

Disick was admitted to rehab last October to overcome his alcohol addiction, but was seen drinking and smoking while on the early March vacation with Burke. Kardashian shared a cryptic message on Twitter that weekend, which said: "A smile hides my pain, a hug masks my heartache, and a laugh covers my tears."

The father of three cleared up media reports that he relapsed into his old partying ways after the Mexico trip in an exclusive interview with People. "In the end, I'm trying to live my life," Disick said. "I'm trying to live it healthy. I'm trying to be there for the people I love, which is Kourtney and kids, but you know what, we're not together."

See a photo of Disick with Burke below.