Unless you have way more important things to do than pay attention to celebrity gossip, you know that Kourtney Kardashian received some unexpected news a little over six months ago when she found out she was knocked up with ex Scott's little Disick.

But Khloe's reaction to hearing the news is priceless!

Sure, she's pretty excited to be an aunt today, but watch the above vid to see her go off on the unprotected couple!

Let's hope Kourtney was a little less abrasive when she found out her younger sister was getting married after only a little more than a month of dating.

Check out THAT video ...