The first photo in the series showed her as a baby with her aunt sitting behind her on a pool chair.

The Kardashians star also shared a photo of her teenage self sitting on a couch with her older sister Kourtney Kardashian and their aunt in between them.

The first photo in the series showed her as a baby with her aunt sitting behind her on a pool chair

The Kardashians star also shared a photo of her teenage self sitting on a couch with her older sister Kourtney Kardashian and their aunt in between them

She also posted a sweet photo of she and Karen holding hands as they posed in front of a Christmas tree while wearing matching red and black ensembles.

She also shared a photo of Karen posing alongside her late father Robert Kardashian Sr., grandmother Mary Jo ‘MJ’ Campbell and mother Kris Jenner.

Another snap in the series showed Karen sitting on a pink and blue couch in front of a golden floor lamp highlighting her silhouette.

The SKIMS founder also shared a photo of her sitting outside beside her aunt and her younger sister Khloe Kardashian — who was seen cuddling a puppy in the photo.

She also shared a photo of her grandmother MJ alongside Karen beside Kardashian Sr.’s cousin Cici Bussey.

She also posted another throwback Christmas snap of grandmother MJ with Karen as they cuddled up next to each other in front of the fireplace in matching white ensembles.

Kim also included an adorable throwback photo of her younger self sitting in her aunt’s lap.

She also shared a photo of her and sister Kourtney sitting on the couch with their aunt.

She also posted a sweet photo of she and Karen holding hands as they posed in front of a Christmas tree while wearing matching red and black ensembles

She also shared a photo of Karen posing alongside her late father Robert Kardashian Sr., grandmother Mary Jo ‘MJ’ Campbell and mother Kris Jenner

Another snap in the series showed Karen sitting on a pink and blue couch in front of a golden floor lamp highlighting her silhouette

The SKIMS founder also shared a photo of her sitting outside beside her aunt and her younger sister Khloe Kardashian — who was seen cuddling a puppy in the photo

She also shared a photo of her grandmother MJ alongside Karen beside Kardashian Sr.’s cousin Cici Bussey

She also posted another throwback Christmas snap of grandmother MJ with Karen as they cuddled up next to each other in front of the fireplace in matching white ensembles

She also included an adorable throwback photo of her younger self sitting in her aunt’s lap

She also shared a photo of her and sister Kourtney sitting on the couch with their aunt

Earlier this week, it was reported that Karen died at age 65.

The exact circumstances of her passing are unclear, and county officials attributed her death to natural causes for now.

Karen was Kris’ only sister, with the pair growing up in San Diego together raised predominately by mom MJ after her divorce from Robert Houghton.

Karen is survived by her daughter Natalie, 26, who she welcomed with ex-husband Mark Zettel.

On Tuesday, Kris shared snaps with her beloved sister and wrote: ‘It is with the heaviest heart and deepest sadness that I share that my sister Karen passed away yesterday unexpectedly.