Kendall Jenner Leaves Little to the Imagination In Plunging Top at Birthday Bash

Kendall Jenner turns 20 today but she celebrated her birthday in style at The Nice Guy in West Hollywood on Monday night, with her whole famous family in tow!

The model, who's officially graduated from her teen years, proved she's all grown up in a revealing outfit that left little to the imagination thanks to its plunging neckline. The model rocked a custom Sergio Hudson jumpsuit that featured mesh panels and a shiny belt as she made her way into the restaurant. She paired the look with a messy top knot, red lips and black strappy heels.

And while the reality star stole the show, her chic sisters did not disappoint with their fashion-forward looks either.

Kourtney Kardashian took a page from her younger sister and also rocked a cleavage-baring look while entering the party with Khloe Kardashian. The hot mom-of-three donned a lace-up bustier top with a pair of Balenciaga leather leggings and a satin bomber jacket. She accessorized with pin straight hair, pointy toed pumps and a fringe clutch.

Khlo kept with the all-black theme of the night in a simple jumpsuit, cropped leather jacket and pumps as she showed off her new blonde lob.

Kim Kardashian proudly showed off her bump in a sequined turtle neck dress paired with a matching over-sized blazer. The star, who is due next month, paired the look with black sandals and a sleek high ponytail.

But it was sister Kylie Jenner that really stood out from her family in her bold ensemble. The 18-year-old rocked a gold Balmain jumpsuit and belt, with sheer panels and palazzo pants. She sported a cropped wig with bangs and finished the look with a dramatic smokey eye.

The party looked just as fab from the inside, as the "Keeping Up With The Kardashians" star blew out the candles on her Chanel No. 5 birthday cake in a video posted by family friend Simon Huck.

"Happy Birthday @kendalljenner," he captioned the Instagram post.

These weren't the only famous faces at Kendalls big bash though. Mom Kris Jenner was also spotted entering the party with boyfriend Corey Gamble, along with Gigi Hadid, Kanye West, Drake, Hailey Baldwin, Justin Bieber, Tyga and Nick Jonas!

It's been a very exciting birthday for Kendall. On Monday, it was announced that the rising supermodel will walk alongside Gigi in the 2015 Victoria's Secret Fashion Show!