Kendall turned 20 years old Yesterday but the Kardashians/Jenners stepped out to celebrate a night before. The brunette stepped out showing off her chest in a plunging jumpsuit for an evening of celebration at The Nice Guy restuarant in Hollywood. Kim, Kourtney, Khloe, Kylie, mother Kris, her boyfriend, Corey Gamble, Kanye and others were also present.