Kourtney Kardashian was seen with Diddy's son Quincy on Wednesday evening at Beverly Hills restaurant Il Pastaio

Kourtney Kardashian sure knows how to lead the single life.

The 36-year-old Keeping Up With The Kardashians beauty was seen on a dinner date on Wednesday evening with neither her ex Scott Disick, 32, nor her current beau Justin Bieber, 21, but rather a new young man: Quincy, 24, who is the son of rapper Sean 'Diddy' Combs.

And, to push the sword in even deeper as she continues to revenge date, the E! princess chose to dine at Scott's favorite restaurant, Il Pastaio in Beverly Hills.

A new man in her life: Kourtney Kardashian was seen with Diddy's son Quincy on Wednesday evening at Beverly Hills restaurant Il Pastaio

Close: The two were side by side as they paid the valet

Sharing the cost: And the 36-year-old beauty was dressed up in a silky beige coat for the romantic dinner

The reality diva looked pretty in a beige rain coat over a white T-shirt. She had her long locks worn down with attractive makeup.

Quincy showed off his good looks in a black ensemble including a leather jacket.

The two were seen outside the Italian restaurant, where Scott has dined several times with Kendall Jenner.

And Kourtney and Quincy were also seen leaving in a car together. The son of Sean Combs was in the driver's seat and the sister of Kim and Khloe was in the passenger's seat. 

That smile says a million words: The E! princess beamed as she left with the hunky son of the NY rapper

No ex, no worry: Kardashian has seemed to be in a great mood since splitting from partner of nine years, Scott Disick

Quincy is the son of model and actress Kim Porter and Sean Combs.He's a singer, model and actor. His biological father is Eighties New Jack Swing singer Al B Sure! And he was named after his godfather music legend Quincy Jones

Earlier in the day, People reported Kourtney was having plenty of fun with the Baby hitmaker and he is enjoying having landed such a 'hot mom.'

And the singer doesn't care that he is just being used to hurt the E! star's ex-partner Disick, it was added by the site. 

A chaperon? In the back seat was a female pal who wore a leopard coat

No one would kick this guy out of bed for eating crackers: Quincy looked handsome in his leather jacket

We see you: He's the son of model and actress Kim Porter and Sean Combs. Quincy is a singer, model and actor. His biological father is 80's New Jack Swing singer Al B Sure. He was named after his godfather music legend Quincy Jones

Turns out Justin - who used to live with Selena Gomez - likes a good challenge.

'He couldn't believe that she would go for him,' the source said. 'He brags about how hot she is.

'He is used to being swooned by young girls that have nothing else going on. Kourt is a hot mom with a career.'   

And this is what her 'beau' was doing: On Thursday Bieber posted this photo where he was showing off a gold tooth

It was added: 'He is happy while it lasts. Even if she is using him to get back at Scott, he couldn't care less.'

Disick cheated on the mother of three over the summer during a months-long bender that included trips to New York City and Miami. He has since gone to rehab and has tried to stay close to her family by appearing on Keeping Up With The Kardashians and I Am Cait.

Justin's romance with Kourtney is not new. 

It's heating up: Justin and Kourtney had a date in October; this month it was revealed by UsWeekly that they have been seeing each other since August

'It's been going on for a few months,' a source told People.

The unlikely pair enjoyed another night out together at the Nice Guy in West Hollywood on Friday looking very 'touchy feely'.

'Justin and Kourtney have been hooking up since late August, early September,' a source told Us Weekly .

Previous reports said the duo first hooked up in October after they were seen hanging out at Universal Studios' Halloween Horror Nights. The pair appeared in an Instagram picture wearing 3-D glasses, and are said to have spent time together later that night.

Adios: Kourtney split from Disick this summer after he was seen getting close to an ex while on a bender; here they are together with Penelope on December 9

Meanwhile, Kourtney's ex Disick is resigned about the fling and accepts it for what it is, with an insider saying 'He feels he has to take the humiliation.'

On Thursday People also reported that it 'stings' Scott to see Kourtney with Justin. 

'Scott feels she's doing this to get back at him and get revenge.' a source told Us Weekly.

The self-professed 'Lord Disick' reportedly thinks it's 'dumb and immature' but knows he has no reason to be annoyed after the string of women he has been seen partying with throughout the summer.

Mommy duty: The looker with Penelope and Kim's daughter North on December 12

But Bieber has reportedly been boasting to his friends about hooking up with the Keeping Up With The Kardashians star.

The Canadian crooner even shared a cheeky Instagram post on Monday showing him standing over an unknown woman on the bonnet of a black Audi and captioned it 'Lord knows' in apparent reference to Disick's nickname.

He's a regular: Bieber was back at the Nice Guy with a mystery female on Wednesday morning 

During their outing on Friday Bieber posed with pal Corey Gamble (Kris Jenner's toyboy) as they had their picture taken together while they sat on his blue Ferrari.

Bieber and Kourtney then headed to karaoke club Blind Dragon, where she left well before the What Do You Mean? singer but then somehow managed to sneak into the Montage Beverly Hills hotel, where Bieber likes to stay. The eldest Kardashian girl was then photographed leaving at 4 am.  

Meanwhile, TMZ recently reported that the TV personality is not rekindling her romance with former longtime partner Disick.

The duo share three children, Mason, five, Penelope, three, and Reign, one.