Because they obviously don't have anything to wear!
Kim was truly the most bodacious of the three in a very, very tight white Balenciaga dress that looked ready to burst at the seams.
In fact, we're surprised it didn't!
She completed the look with beige patent leather Christian Louboutin pumps.
Khloe was a bit more reserved in a loose knit sweater and black mini skirt, which she paired with a red quilted Chanel handbag.
Kourtney, meanwhile, kept things flirty and feminine in a cute peach fit-and-flare Cameo dress, alice + olivia floral print heels and a yellow quilted Chanel purse.
Which look do U like best???