Rob Kardashian shows off slimmer frame in rare appearance for Khloe's birthday

Rob Kardashian has impressed his followers after posing for a snap with his big sister Kourtney Kardashian, breaking his seemingly self-imposed hiding to celebrate Khloe Kardashian ‘s 36th birthday.

The only brother of the Kardashian roost stepped out over the weekend for some quality family time with his siblings and shared the moment on Instagram.

The 33-year-old shared a sweet snap of himself and Kourtney, 41, smiling widely as they headed out for the big birthday celebrations.

Rob went casual for the event in a black hoodie, baggy black jeans, a navy blue baseball cap as well as black and red sneakers.

Rob Kardashian posed with sister Kourtney in a rare outing for Khloe's birthday

Rob Kardashian posed with sister Kourtney in a rare outing for Khloe’s birthday (Image: Instagram)

Meanwhile, Kourtney was a little more dressed up in a minuscule dress that cinched around her waist and ended high on her legs.

She accessorised with a mini handbag and some clear PVC stiletto shoes to lengthen her 5′ 1″ frame.

Blac Chyna’s ex Rob captioned the shot with the words “sweet 16”, a nod towards Khloe’s birthday – albeit 20 years late.

Rob has kept a low profile over the last few years, openly struggling with his weight

Rob has kept a low profile over the last few years, openly struggling with his weight (Image: Photographer Group / Splash News)

Keeping Up With the Kardashians fans have rarely seen Rob out in the past few years, after the star openly struggled with his weight.

However they were left seriously impressed by his slimmer appearance and happy to see him out with his family.

His 1.5million followers rushed to leave a like, with more than 192,000 hitting that heart button, and plenty of them leaving a supportive comment too.

Inside Khloe's party, Rob posed with Tristan Thompson and pal Savas Oguz

Inside Khloe’s party, Rob posed with Tristan Thompson and pal Savas Oguz (Image: Instagram)

One wrote: “Looking good Rob.”

Another commented: “Yes Rob! Good to see you so happy.”

A third said: “Glad to see you back sexy.”

Someone else added: “Rob! So freaking handsome!”

While a fifth said: “You’re looking great,” finishing their comment with a heart-eye emoji.

Rob’s family got in on the action too, with sister Kendall Jenner leaving a string of love heart emojis.

Kourtney wrote: “Sweet sixteen!” as well as a variety of emojis, included a red heart.

Meanwhile, sister Khloe’s ex and father of her child Tristan Thompson left a simple message of a red heart and some hands praying.

Rob shared some other photos from Khloe’s celebrations too, including one with Kourtney’s ex Scott Disick.

He also posed with Tristan and family friend Savas Oguz, who drove Khloe to hospital before the birth of her daughter True.

Source: Celebrities - dailystar.co.uk

From latex to bikinis – Nicole Scherzinger's hottest snaps as she turns 42

EastEnders stars 'properly told off and sent home' from filming on BBC soap