Kylie Jenner’s seductive birthday LBD featured huge cutouts on the back

Kylie Jenner is officially 27 and will soon be 30. On Saturday, August 10, the youngest KarJenner sister rang in her milestone birthday in a classic piece of clothing: A slinky black LBD that accentuated her curves with huge cutouts on the sides and back. Jenner took to social media to share some Polaroids from the low-key celebration, along with a reference to a viral The Kardashians Joke.

In three photos shared on Instagram, the beauty expert is seen closing her eyes and seemingly making a wish while holding a birthday cake decorated with fresh fruit and lit candles. Jenner puts a sexy spin on a classic little black mini dress with a halter neckline and large cutouts on the side and back. In the third photo, the Khy designer, who wore her dark hair in voluminous waves behind her ears, is seen celebrating with her mother, Kris Jenner.

“27 (basically 30) 🥹,” she cheekily captioned the post. “Full of love and so grateful. Thank you God.” Her early farewell to her 20s referenced a conversation with her big sister Kendall, 28, who she memorably said will be “basically 30” in 2023.

During a viral episode of the fourth season of The KardashiansKylie said to Kendall, “These are our years, Kendall. I’m 25. You’re like 30…” Laughing, Kendall interrupted her and said, “Kylie, that’s so rude. I’m 27.” Kylie replied with a serious expression, “You’re basically 30. When I turn 27, you can call me 30, too.”

Kendall followed through on that promise, sharing an Instagram story with the caption, “Guess who’s basically 30 now?” The throwback photo shows the sisters as kids in matching black dresses, making faces at the camera.

Jenner’s best friends Hailey Bieber, Stassi Karanikolaou, Yris Palmer and Lauren Perez also shared photos and videos from the festivities, including a photo of cookies decorated to look like Jenner’s face. It’s unknown if Jenner’s rumored boyfriend Timothée Chalamet was in attendance, but it looked like the reality star was feeling 30 (or more like 27), flirty and thriving as she celebrated with her inner circle.