Fans thirsty for scandal can thank Jax Taylor and his girlfriend Brittany Cartwright. Madix and Sandoval, who are also a couple, told us that it's their co-stars' relationship that gets tested the most throughout this season, which makes sense, because the trailer shows Taylor being confronted about rumors of infidelity.
"We can't obviously give away too much, but they are together now, as you can see on social media ... it's a lot," Madix said. "So just gird your loins for that one."
It's so much drama, in fact, that Madix said Taylor and Cartwright's relationship issues has collateral damage on the rest of the cast.
"It's like a ripple effect," Madix said. "Anything that happens with any one couple, somehow ripples into all of the other people."
"I think you see in the trailer that Tom and I went through some stuff so I'll go ahead and say that that had something to do with it," Madix added.
The duo exclusively told TooFab last month that series' antagonists, James Kennedy and Lala Kent, returned to film this season -- even though Kennedy was fired from Lisa Vanderpump's Sur and banned six times.
Madix said she's not sure how Vanderpump found it in her heart to welcome Kent back after her dramatic exit, but is confident their boss has a "soft spot" for Kennedy.
"As ridiculous as he can be sometimes, obviously we've seen it, he's also kind of a lovable, funny guy and I think she does have a soft spot there."
Season 6 of "Vanderpump Rules" premieres Monday, Dec. 4 at 9 p.m. on Bravo.