'Jersey Shore' Kids: The Next Generation of Fist Pumpers

"I definitely think Angelina loves her fiancé, but she doesn't know when she crosses the line," Snooki says on Thursday's episode. "Girl, you cheated!"

Something tells us Angelina Pivarnick's fiancé is not going to be happy after watching Thursday's "Jersey Shore: Family Vacation."

At the end of last week's episode, Jenni "JWoww" Farley announced she'd be leaving the vacation a few days early and meeting the gang back in New Jersey. Nicole "Snooki" Polizzi was sad, but there to cheer her up were Angelina and Snooki's gay best friend, Joey. Those three drunkenly roaming around Vegas together made for a combination Mike "The Situation" Sorrentino called "extra as f--k."

During one of their last nights of clubbing together, Pauly D got admittedly wasted -- so wasted, in fact, that he started dancing with Angelina.

"Normally, I'm at a 10. This time, I was at a 15," he told cameras.

With the rest of the group watching open-mouthed, Pauly picked Angelina up off the floor and began grinding with her. She then wrapped her legs around him in mid-air. (See below.)

"She's cheating!" Snooki yelled. "She's going to lose her fiancé right now. She's going to lose her fiancé in this moment. I'm sorry, but when you get engaged, you really don't dance with a guy like that."

Snooks later told cameras, "I definitely think Angelina loves her fiancé, but she doesn't know when she crosses the line. Girl, you cheated! I just think she needs a one-on-one lesson on how to be a good fiancée. We're all wasted. I need to keep Angelina away from Pauly. She's like, 'Yeah, I'd f--k him.' No, girl!"

Even Ronnie Ortiz-Magro -- who's had his fair share of relationship ups and downs this season -- couldn't believe his eyes. Mike called the debauchery "befuddling."

"I think Pauly's a great guy. I think he's cute, I think he's tan, he's got muscles, he's got tattoos," Angelina told cameras. "If I was a single girl, I probably would bang Pauly."

Well, it would appear the same holds true for Pauly. On the way back to their hotel, "Angeliners" and Pauly snuck into their own cab. He told her, "Angelina, I'll be honest with you, if you wanna have sex with me, let me know. We could do it." All Angelina did was gasp.

In the other cab, Snooki was freaking out. "They're gonna make out! They might bang tonight!" she yelled. No one shot down the idea.

Thankfully, Mike "The Designation" took over "Pauly duties" once they got back to Planet Hollywood. Pauly passed out on the couch almost immediately.

But lo and behold, Angelina "cheated" again the very next night at Chippendales when she volunteered to go up on stage and be danced on by hot, sweaty, ripped, naked men.

"The guys are really hot. I mean, really hot. I'm hoping that my fiancé understands it's just a show," Angelina told cameras. "It's not really something serious. As long as they're not on me then I think he'll be okay with it."

They were on her, alright! She also took a dancer's pants off. He then showed her his junk.

"Cheating! Cheating! She's cheating" Snooki yelled from the audience. "Oh, my God! Oh, my God! Oh, my God!" Joey's mouth was on the floor.

"If Chris finds out that Angelina was all over Pauly and now the Chippendales show, you're not gonna be engaged anymore," Snooki told cameras. "You're gonna be single because he's not gonna deal with that shit."

"Jersey Shore: Family Vacation" airs Thursdays at 8 p.m. on MTV.

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