However, Rob threw in his two cents anyway, saying:
[Image via Johnny Louis/Brian To/WENN.]
Haven't you heard that smiling is good for your health??
But apparently, health is only skin-deep for this Kardashian — because while we've definitely noticed the reality TV starlet doesn't smile all too often, we didn't know there was a reason behind it!
Yet there IS, and Kimmy revealed that reason on Instagram Monday!
She posted a rare smily photo in the gallery (above) with the following caption:
"See I do smile… even laugh on occasion. Not too often though because it causes wrinkles @shammaurice"
Gurl, life is WAY too short to be thinking like that.
Laugh lines are a beautiful sign of a happy existence!!