It's official: The bad blood has entered the building Real World. And Anika, Jordan, Katrina, Mike, Robbie, Theo and Tyara better duck and cover...

In a look from the upcoming tension-filled episode (airing this Wednesday), the OGs' enemies -- Will, Orlana, Anna, Peter, Jennifer, Kassius and Kimberly, respectively -- make their descent on Seattle and excitedly explore the Emerald City digs (sans the OG crew). But one newbie can't mask her anxiety about the impending awkward reunion.

"All I have to say is, I will sleep with anyone in the same room -- but just not Robbie," Jenn declares about her ex in the video above. Well, we'll have to see about that...

But how do the other six brand-new housemates feel about the sneaky surprise? Check out the clip, and do not miss the action-packed installment on Wednesday at 10/9c.