Kourtney Kardashian goes braless in a very busty display for night out in LA with Scott and Sofia

They were in embroiled in a famously tempestuous romance and later split.

Yet Kourtney Kardashian, 39, proved herself to be a forgiving soul as she enjoyed an amicable night out with her ex Scott Disick, 35, and his 20-year-old girlfriend Sofia Richie in Los Angeles on Friday night.

The eldest of the Kardashian siblings was also joined by her sister Kim at the Street Dreams Gala in West Hollywood as she put on a sizzling display in a barely-there top with no bra beneath and a pair of figure-skimming trousers.

She’s got it: Kourtney Kardashian , 39, proved herself to be a forgiving soul as she enjoyed an amicable night out with her ex Scott Disick , 35, and his 20-year-old girlfriend Sofia Richie in Los Angeles on Friday night

Kourtney, who she shares Mason, eight, Penelope, six, and Reign, three, with Scott, showed off her surgically-enhanced chest in a cream top with a plunging neckline and wrap detail, putting her washboard abs on display.

The mother-of-three opted for a monochrome look, pairing the daring top with a high-waisted black trouser and killer stilettos.

Adding a touch of glamour to the look, she drew even more attention to her ample assets with four statement necklaces, all with a crucifix pendant.

New flame: Scott and Sofia seemed totally unbothered by being joined by his ex, with whom he shared a day of fun with their kids shortly before

New flame: Scott and Sofia seemed totally unbothered by being joined by his ex, with whom he shared a day of fun with their kids shortly before

Dare to bare: The mother-of-three showed off her surgically-enhanced chest in a tiny cream top with a plunging neckline and wrap feature detail, putting her washboard abs on full display

Stylish: Kourtney opted for a monochrome look, pairing the daring top with a highwaisted black trouser and killer stilettos

Dare to bare: The mother-of-three showed off her surgically-enhanced chest in a tiny cream top with a plunging neckline and wrap feature detail, putting her washboard abs on full display

Sweeping her silky raven tresses to one side, Kourtney looked edgy with a diamante earcuff and hoop earring.

Always preened to perfection, the KUWTK star sported a sexy make-up look, with a light blusher and pale lip teamed with thick eyelash extensions.

Meanwhile, ex-partner Scott opted for a casual look of black trousers, trainers, and a leather jacket as he walked hand-in-hand with model Sofia.

Family time: Kourtney recently took to Instagram to share a shot with her ex-boyfriend Scott and their kids Mason and Penelope

Family time: Kourtney recently took to Instagram to share a shot with her ex-boyfriend Scott and their kids Mason and Penelope

Chilled: Scott, who she shares Mason, eight, Penelope, six, and Reign, three, with opted for a casual look of black trousers, trainers, and a jacket as he walked hand-in-hand with Sofia

Chilled: Scott, who she shares Mason, eight, Penelope, six, and Reign, three, with opted for a casual look of black trousers, trainers, and a jacket as he walked hand-in-hand with Sofia

Model good looks: The sister of Nicole Richie, showed off her enviably toned pins in a micro mini dress with a a roll neck

Commanding attention: Ensuring all eyes were on her, Sofia teetered into the party in strappy gold heels, while carrying her possessions in a teeny faux fur handbag

Model good looks: The sister of Nicole Richie, showed off her enviably toned pins in a micro mini dress with a a roll neck

Gentleman: Reality TV star Scott opened the car door for his model girlfriend

Gentleman: Reality TV star Scott opened the car door for his model girlfriend

The sister of Nicole Richie, showed off her enviably toned pins in a micro mini dress with a roll neck detail.

Ensuring all eyes were on her, Sofia teetered into the party in strappy gold heels, while carrying her possessions in a teeny faux fur handbag.

Kourtney was later joined by sister Kim and BFF Larsa Pippen, who recently filed for divorce from former NBA star Scottie.

Girls night! Kourtney was later joined by sister Kim and BFF Larsa Pippen, who recently filed for divorce from former NBA star Scottie

Girls night! Kourtney was later joined by sister Kim and BFF Larsa Pippen, who recently filed for divorce from former NBA star Scottie

The Real Housewives of Miami star donned an all-black look, teaming silky wide-leg trousers with a low-cut bodysuit that showed off her very ample chest.

Also joining the Kardashian clan was Kim’s BFF Brittny Gastineau, who ran the event, and the family’s personal trainer Amanda Lee.

While the ladies all dressed in blue and black tones, always one to stand out, Kim sported a silver look of skin-tight leggings and a matching crew-neck top. 

Besties! Also joining the Kardashian clan was Kim's BFF Brittny Gastineau, who run the event, and the family's personal trainer Amanda Lee

Besties! Also joining the Kardashian clan was Kim’s BFF Brittny Gastineau, who run the event, and the family’s personal trainer Amanda Lee

All eyes on Kim: While the ladies all dressed in blue and black tones, always one to stand out, Kim sported a silver look of skin-tight leggings and a matching crew-neck top

Famous derrière: Kim ensured she looked great from every angle as she showed off her famous derrière

All eyes on Kim: While the ladies all dressed in blue and black tones, always one to stand out, Kim sported a silver look of skin-tight leggings and a matching crew-neck top

Sister time! The eldest of the KarJenner siblings looked amazing as they arrived at the art gallery in tandem

Sister time! The eldest of the KarJenner siblings looked amazing as they arrived at the art gallery in tandem

Kourtney is on good terms with ex Scott, and recently took to Instagram to share a shot with him and their kids Mason and Penelope.

After they split, he started dating Sofia and Kourtney started dating Younes Bendjima, 25, and, allegedly most recently, Luka Sabbat, 20.

While it was believed that Kourtney and Luka had split when he was seen kissing another woman, Hollywood Life reported last week that they are dating again.

Learning: Kim looked to be incredibly interested in pal Brittny Gastinea as she explained the gallery to her, meanwhile Kourtney seemed to catch a glimpse at ex Scott

Learning: Kim looked to be incredibly interested in pal Brittny Gastinea as she explained the gallery to her, meanwhile Kourtney seemed to catch a glimpse at ex Scott

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