Kim Kardashian Posts Throwback Pictures from Sister Kourtney's Birthday

Kim Kardashian took to social media recently to share throwback photographs of herself from sister Kourtney Kardashian’s 40th birthday party a month ago.

The "Keeping Up With the Kardashian" star, 38, posted four pictures on Instagram, which were taken as she walked across a gas station forecourt in Los Angeles on her way to Kourtney's birthday bash.

During Kourtney's birthday party, Kim took to her Instagram Stories to share photos of all the details on the night.

"Throwback to Kourtney’s Birthday," she simply captioned the post.

In the series of photos, Kim is seen donning a black vintage Versace dress. The skimpy outfit was see-through and showed off her ample cleavage.

The aspiring lawyer's bare backside is on full display in an image taken of her from the back. She styled her dark hair in loose waves and wore a glamorous make-up.

The reality star, who talked about her choice to start a four-year apprenticeship with a law firm in San Francisco last summer, completed her look with a pair of black, strappy heels.

During Kourtney's birthday party, Kim took to her Instagram Stories to share photos of all the details on the night.

According to a source from Hollywood Life back in April, Kourtney is said to be feeling better than ever as she celebrates the milestone birthday.

“Kourtney used to be really scared about turning 40 as she just didn’t want to be getting older and dealing with everything that comes with that, however, she feels confident and sexier than ever. So she’s really turned her attitude about it around,” the source explained.

The source added that Kourtney "feels blessed to have three healthy, beautiful kids and be in a good place career-wise, too" and that "the idea of getting older is, of course, scary, but Kourtney looks at her mom Kris and sees how amazingly she’s aged."