Everyone can be jealous of whoever gets to work with Kim Kardashian on a day like this.
"Work day," the E! star wrote on Instagram along with a photo of her—seen through a camera viewfinder—in a sheer black top that showed off her plentiful cleavage.
A form-fitting black leather pencil skirt accentuated Kim's rapidly shrinking waist, a bit of bare midriff peeking out between the separates.
"Happy 18th Birthday to the sweetest girl I know@kendalljenner I hope your adult years are filled with happiness & so much [love]," Kim wrote, inserting a heart emoji. Khloé Kardashian Odom tweeted a pic of Kendall with her birthday cake, the guest of honor herself writing, "it's so prettyyy! I don't even want to eat it."
Kim's fiancé was spotted earlier today shopping at Barney's New York in Beverly Hills. The rapper found himself with an unexpected surplus of free time following the postponement of his Yeezus Tour after the massive LED screen that's a focal point of the production was damaged while being transported from L.A. to Vancouver.
Catch a new episode of Keeping Up With the Kardashians this Sunday at 9 p.m., only on E!