The billionaire cosmetics mogul — who dropped in on the app earlier in the day to share ʙικιɴι-clad snaps — smoldered in a skinтιԍнт backless black dress.

She wrote in a caption to her nearly 400 million followers, ‘thank you for the birthday wishes. forever grateful.’

It didn’t take much time for the post to reach more than three million likes from her admiring fan base.

The pH๏τos captured the mother-of-two on a balcony overlooking the ocean as the sun set.

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Jenner looked flawless in the set of pH๏τos, which featured her with her raven locks neatly slicked into a bun.

The Kylie Cosmetics founder glowed in a full face of softly shimmering makeup.

She skipped eyeliner and false eyelashes in lieu of a more natural look that highlighted her features.

The reality television star’s cheeks were dusted in a shimmery pink blush, and her famous pout was coated in a ɴuᴅᴇ shade.

Kylie displayed quiet luxury as she rocked understated earrings and bracelets.

Her halter neck dress bared her toned back as it dipped and transitioned into Sєxy cutouts along her lower back.

The post came after the bombshell acknowledged her birthday with an earlier post that was simply captioned, ’26.’

She was seen in a black ʙικιɴι top with gold jewelry as she lazed about on a white sand beach.

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And there was an image of her backside as she sat on the shore looking out at the horizon.

Jenner received multiple heartfelt tributes from her family on social media.

Older sister Kendall Jenner shared, ‘Happy birthday my tiny baby sister’ and uploaded an image of Kylie as a baby.

And Kylie received a very early Instagram tribute from mom Kris Jenner, who serves as her manager.

Kris shared a video of Kylie as a child at one of her birthday parties as she was presented with a mᴀssive cake.

‘Happy to my baby girl @kyliejenner!!!!’ the Keeping Up With The Kardashians producer began her post.

‘You may be the youngest but sometimes you are much wiser and more mature than me!!!!

‘Thank you for giving me another chapter at motherhood… you are one of my life’s biggest blessings and I am so proud of the woman you have grown into.

‘You surprise me every day with your wisdom, love, sensitivity and compᴀssion. You are the most amazing daughter, mother, sister, auntie, granddaughter, and BFF to everyone you know! I am so proud of you…’ she gushed.

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Khloe Kardashian also penned a touching tribute to her younger sister, who she called the epitome of ‘love, peace, patience, grace, understanding.’

‘To the mother of all mothers. To the girl who can make anyone feel as if the universe is on their side,’ the Good American founder, 39, began. ‘To the girl who makes everyone and anyone feel special and seen. You are a safe space. A space of love and serenity…. Happy birthday sweet @kyliejenner,’ she wrote.

She continued: ‘I know you don’t need me to tell you this but, Never stop being exactly who you are. You are love, peace, patience, grace, understanding, I can go on and on.’

Khloe called Kylie the ‘salt of the Earth’ and said ‘I love and respect so much about you!

‘I learn so much from your patience and your ability to trust what life has in store for us. Your ability to trust life’s journey without fear. I will forever be indebted to God for blessing us with one another.

‘I don’t think you fully understand this obsession I have with all of my siblings. It’s a beautiful addiction. One I am proud to have,’ wrote Khloe.