Kim Kardashian In Braless Spaghetti Straps Shows 'Best Era' With Khloe

Kim Kardashian took under an hour for fans to deem her in her "best era" today as she shared snaps with her sister Khloe Kardashian. Posting to Instagram as she showed her 40-year-old sibling some love, Kim dazzled in a plunging black dress, nearly pouring out of her clingy fabrics as she rocked a braless finish held up by spaghetti straps. Twinning with Khloe in black, 43-year-old Kim reminded fans that her bond with Khloe is rock-solid, and comments flattered both sisters. Going "hot summer nights" as she and Khloe brought the heat, Kim earned herself over 600,000 likes in just one hour.

Scroll for the photos. Fresh from her attendance at billionaire heir Anant Ambani's Mumbai, India wedding this month, Kim spent more time with Khloe as the two sashayed toward the camera during their shoot. Drawing the eye to her eye-popping cleavage, the SKIMS founder went skintight in a dangerously low-cut dress, going bodycon-style as she wowed the lens.

Lifting her arms to her head as she highlighted her toned upper body and smoldered with parted lips, Kim drove fans wild with her sexy vibes, and Khloe wasn't far behind. Showing off her fit figure, the Good American founder rocked a mesh-netted black dress that flashed her underwear beneath, also sending out a fierce gaze. Kim's gallery included posed moments near stone walls as she and Khloe flaunted their good looks, with one image including Italian tenor Andrea Bocelli.

"Hot summer nights, mid-July," Kim Kardashian wrote. Over 3,000 users agreed when a fan replied: "They are in their best phases." Meanwhile, a separate user told Kim that she's in "her best era."

In late June, Kim took to IG to mark her sister Khloe turning 40. Sharing a throwback of the duo near-twinning in matching sets as they both rocked ab-flashing crop tops, the reality star gushed over Khloe, writing:

"Welcome to the f*cking 40 club baby!!!!! @khloekardashian I feel like you have been waiting for years to finally be done with your 30’s and the time has now come. I know this will be the best decade of your life filled with so much love and happiness! I’m so excited for you to experience this because I know how good it is, and no one deserves this more than you! What a crazy life we live!"

Earlier this year, the birthday shout-out was to eldest sister Kourtney Kardashian. Sharing a vacation shot as all three siblings sizzled in black swimwear on a beach, Kim shouted out the Poosh founder turning 45, writing: "I love you and I can’t wait for another 45 years together! I will especially cherish this last sister trip where all of our kids had dance parties til they passed out, the way we all did growing up!"