Sharna, Brian and Randy are in Sin City for a very special episode ... and what happens in Vegas doesn't stay in Vegas. 

The cat's out of the bag! Brian and Sharna are ENGAGED!

Hear the whole proposal story right here! From when Brian decided to pop the question to how and where he did it, Sharna's reaction, her thoughts on the ring (she asked for extra sparkle) and how long they've been keeping the secret!

Plus, the trio answers rapid-fire questions sent in by fans - and no questions are off-limits!