'Vanderpump Rules' Sneak Peek: Ken Todd Exposes Raquel Leviss and Tom Sandoval's Secret Sleepover 

The husband of Lisa Vanderpump dropped the bomb in a sneak peek for 'Vanderpump Rules'.

Tom Sandoval and Raquel Levissmonths-long affair may not have been exposed until March, but one unsuspecting person was on to them: Ken Todd.

In a sneak peek for next week’s new episode of Vanderpump Rules, Lisa Vanderpump and Katie Maloney are making sandwiches in the kitchen at Villa Rosa when Lisa’s husband, Ken, drops a bomb.

"I can’t believe that Tom Sandoval had Raquel over when Ariana’s away, in the jacuzzi as well."

"I know. I know," Lisa responds.

"And to stay the night," Ken continues. "I couldn’t believe that."

Prior to Ken’s reveal, Lisa learned of the sleepover from Raquel after she shows up an hour and a half late to her shift at SUR.

"Hi, I’m sorry. I’m so sorry I’m late," Raquel says as she walks to the table where Lisa is seated.

"Tell me why you’re late. Sit down here. I want to hear why you’re late," Lisa says.

"I overslept," Raquel explained. "I stayed up late. I went back to Tom’s place and we went in the jacuzzi with Schwartz."

Lisa asks Raquel where she slept, and Raquel says she stayed the night "at Sandoval’s." She adds, "Nothing happened, though."

Lisa isn’t happy with the explanation. "It doesn’t matter if something happened. It’s just the fact that you were there," she states. "I know it looks bad. It was easier to just sleep on the couch and stay the night," Raquel responds.

Sandoval, who was dating Ariana Madix at the time this episode was taped, gets a call from Lisa to hear his side of the story.

"I’m calling you because Raquel has just shown up here an hour and a half late looking like a bag of s**t and then she said she got so wasted last night and ended up spending the night at your house," Lisa says. 

At first, Sandoval admits the two of them "hung out for a little bit," but then attempts to lie, claiming, "Actually, she left early."

"So she didn’t stay the night?" Lisa asks.

"I said she dipped out, which is true. She dipped out," Sandoval says, ultimately confessing to the sleepover.

"Did she spend the night at your house? Did she or not, yes or no?" Lisa presses.

"Yes," Sandoval confirms. "[But] I have people crash at my house [all the time]."

Vanderpump Rules season 10 airs Wednesdays at 9/8c on Bravo.