Khloé Kardashian Proves She Has the Most Adorable Nieces

Prepare to die from cuteness overload. Khloé Kardashian (who had kind of a rough day) took a break from signing copies of her book ​Strong Looks Better Naked (and yelling at fools on Twitter) to snap an adorable photo of her young nieces and it is enough to totally melt your heart.

Penelope, daughter of Kourtney Kardashian posed with Kim Kardashian's daughter North West, holding their aunt's book. The photo even got Khloé feeling a little emotional, too.

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I can't stop smiling when I look at this photo! I love my little ladies!! They were so excited and kept screaming "KoKo!" "KoKo!" North calls me "KoKo Loco"

Being an aunt is seriously the best. 

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