What happens in Vegas doesn’t always stay in Vegas!

At least that’s the case for Vanderpump Rules stars Scheana Marie and Ariana Madix. Scheana returned as a guest host for The Tomorrow Show and she brought her bestie Ariana along as a guest on the late night talk show — where the girls dished about their sexy Vegas hookup!

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Scheana’s co-hosts put Ariana in the hot seat when they started asking her if she ever “dipped in the lady pool,” or if she’s ever hooked up with another girl. She explained that she did have a fling with a girl friend who she was also attracted to — which is when Scheana reminded her of their own fling.

“Well, there was that time in Vegas,” the 31-year-old said, and it took Ariana a second to remember.

“Oh my god, we were so drunk!” Ariana, 31, said.

The way their hookup went down was Ariana and Scheana were on a girls trip and the Toms — Vanderpump Rules stars Tom Sandoval and Tom Schwartz — came out to visit them. All four of them went out together and at one point during the night, Scheana and Ariana snuck away together and the Toms caught them hooking up in a casino.

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Ariana said this took place early on in her relationship with Tom S., and since he isn’t a possessive type of guy, he was totally cool with it.

Scroll through the gallery below to see the cast of Vanderpump Rules then and now!