After 19 previous Bachelor and Bachelorette contests in one house that led to tension, tears and hookups, Bachelor Pad  host Chris Harrison still was "stunned" at just how quickly the house became split between the "cool kids" and the "outsiders." Harrison spoke to TVGuide.com about the two alliances in the house and why contestant Gwen refuses to announce her age. Plus: He weighs in on the double engagement.

TVGuide.com: I bet you're excited about DeAnna Pappas and Holly Durst' double engagement?
Chris Harrison: They're going to do a double wedding in the spring! I'm very excited. If you think about it too hard it's a little bizarre and incestuous ... but overall it's pretty cool. This little world we've created has gone on to create all of these relationships. People always ask, "Are you upset that you don't have more couples together?" I look at the Stagliano brothers and DeAnna and Holly and [Jesse]Csincsak, even Firestone, there are so many people and relationships that have been successful from this show and out of this show.