Rob Kardashian EXCLUSIVE:  Reality star shows slimmed-down physique on rare outing in return to LA

He has stepped out of the limelight in recent years.

But Rob Kardashian is seemingly back and better than ever as he was seen arriving back home after attending half-sister Kylie Jenner‘s lavish 23rd  birthday bash in Turks and Caicos.

The  33-year-old reality star was seen on a rare outing showing off his slimmer physique arriving back via private jet in Los Angeles on Wednesday. 

Scroll down for video 

Looking good: Rob Kardashian is seemingly back and better than ever as he was seen arriving back home after attending half-sister Kylie Jenner’s lavish birthday bash in Turks and Caicos

'Most beautiful trip of my life': The youngest Kardashian brother seemed to have a blast on the short trip as he shared a shirtless snap of himself in a pool with sister Khloe's baby daddy Tristan Thompson

‘Most beautiful trip of my life’: The youngest Kardashian brother seemed to have a blast on the short trip as he shared a shirtless snap of himself in a pool with sister Khloe’s baby daddy Tristan Thompson

The youngest Kardashian brother seemed to have a blast on the short trip as he shared a shirtless snap of himself in a pool with sister Khloe’s baby daddy Tristan Thompson calling it the ‘most beautiful trip of my life.’

Rob looked healthy and happy as he laid across a foam pool floating mattress next to the 29-year-old Cleveland Cavaliers Power Forward/Center.

He captioned the image: ‘Most Beautiful trip of my Life with the Fam‼️ HAPPY BIRTHDAY @kyliejenner‼️ Love You [two blue heart emojis]  WOO!!’

Back to reality: The 33-year-old reality star was seen on a rare outing showing off his slimmer physique arriving back in Los Angeles on Wednesday

Back to reality: The 33-year-old reality star was seen on a rare outing showing off his slimmer physique arriving back in Los Angeles on Wednesday

Chill: The reclusive member of the Kardashian-Jenner family looked fit as he touched back down in Los Angeles wearing a black Chrome Hearts full-zip hoodie over white T-shirt

Chill: The reclusive member of the Kardashian-Jenner family looked fit as he touched back down in Los Angeles wearing a black Chrome Hearts full-zip hoodie over white T-shirt

Sweet: At one point, 36-year-old Khloe showcased her bond with her baby brother as she grabbed his arm while leading him into a dark grey Rolls Royce

 Sweet: At one point, 36-year-old Khloe showcased her bond with her baby brother as she grabbed his arm while leading him into a dark grey Rolls Royce

Tristan also posted the snap with the caption: ‘My Cro 4L @robkardashianofficial [blue heart emoji]’ 

Rob posted his gallery on Instagram which featured several beautiful scenery snaps from the islands in the Atlantic Ocean  and one of his tattooed elbow.

The reclusive member of the Kardashian-Jenner family looked fit as he touched back down in Los Angeles wearing a black Chrome Hearts full-zip hoodie over white T-shirt.

He also proudly represented his favorite team across his crotch as he sported a pair of blue Los Angeles Dodgers shorts by Just Don which feature the Dodgers script logo across front along with a pair of purple and black Air Jordan Retro I low-tops.

Rob accessorized with a black Dodgers baseball cap along with a blue face mask from Diamond Supply Co.

The Arthur George mogul was joined by his older sister Khloe, her ex Tristan, and momager Kris Jenner.

At one point, 36-year-old Khloe showcased her bond with her baby brother as she grabbed his arm while leading him into a dark grey Rolls Royce.

As she has been rumored to have reconciled with ex Tristan, the two certainly appeared to be acting like a couple as they were pictured enjoying a public display of affection on the outing.

The Canadian NBA star was seen putting his hands on Khloé’s waist in a seemingly affectionate manner as he helped get her bags together from the trip. The pair share two-year-old daughter True together.

Clearly very comfortable around one another, Tristan appeared to be close by at all times making sure that Khloé had everything she needed while gathering her things. 

The pair have had one of the rockiest relationships known to the Kardashians, which is saying something. 

Things between the couple shattered two years ago when Tristan was involved in a cheating scandal just as Khloé was going into labor with True.  

'We back!!': Shortly after touching down Rob took to Instagram on Wednesday to share a selfie

‘We back!!’: Shortly after touching down Rob took to Instagram on Wednesday to share a selfie

Meanwhile last year, the pair broke up after Tristan allegedly admitted that he cheated with Kylie’s former best friend Jordyn Woods. 

Shortly after touching down Rob took to Instagram on Wednesday to share a selfie which he captioned: ‘We back!! [two person with one hand raised emojis].’   

Back in June, he  not only made a rare appearance at older sister Khloe’s birthday party but he also showed off a very impressive weight loss in the process.  

Happy and healthy: Back in June, the 33-year-old not only made a rare appearance at older sister Khloe's birthday party but he also showed off a very impressive weight loss in the process

Back in the day: Kardashian is seen here at LAX Airport in March 2016

Happy and healthy: Back in June, the 33-year-old not only made a rare appearance at older sister Khloe’s birthday party but he also showed off a very impressive weight loss in the process

 He looked happy and healthy as he joined his famous sisters for several photos and the ‘family only’ event.

Rob grinned ear to ear as he posed alongside his sisters in his black sweatsuit including Chrome Hearts hoodie and backwards baseball cap.

A source told ET in March: ‘Rob is great and doing really well! Rob continues to work on staying healthy for himself and his daughter, Dream.’ 

4 out of 6: He looked happy and healthy as he joined his famous sisters for several photos and the 'family only' event

4 out of 6: He looked happy and healthy as he joined his famous sisters for several photos and the ‘family only’ event

Out and about: Rob seen in April 2016

Out and about: Rob seen in April 2016