'The Bachelor': Corinne Takes Her Top Off, Liz Reveals Her Past With Nick and Somebody Gets Slapped

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"Cheers, b**ches!"

Monday night's episode of The Bachelor was all about Corinne, who was bold enough to show Nick her true colors -- and her tatas -- in front of the other girls on the first group date of the season.

EXCLUSIVE: Nick Viall on Joining 'Dancing With the Stars' After 'The Bachelor': 'Who Wouldn't Wanna Do It?'

That's right, Corinne decided to show our leading man "the more Corinne side of Corinne," aka her boobs, during the group's wedding-themed date. While the other women posed alongside Nick in wedding dresses, Corinne's gown was (appropriately?) a white string bikini, which she quickly decided she didn't need at all.

Nick got into the pool with Miss Platinum Vagine herself, who promptly removed her bikini top and posed with Nick "Janet Jackson style" while the other women looked on.

WATCH: 'Bachelor' Nick Viall’s Sexy Past With One Contestant Revealed! (And, Is Corinne the Season Villain?)

While Nick's other ladies weren't a fan of the stunt, Corinne must have known exactly what she was doing, as she walked away with the group date rose, despite her little tiff with Taylor and the "phony-ass speech" (Vanessa's words, not ours) she gave to the other girls about going after Nick.

"I'm just so happy. Today was just a dream come true. I stepped out of my comfort zone, many different times and angles," Corinne said to the camera after winning the rose. "Dad would be proud, even though I was naked. He would be proud."

Though Corinne won the group date rose, Danielle M. collected a rose during her emotional one-on-one date -- while Liz decided to open up to Christen about her past with Nick.

"I met Nick at [Bachelor couple Jade Roper and Tanner Talbert's] wedding," she confessed, revealing that they hooked up. "We were in the hallway having a conversation, and we were just making out in the hallway, and then we went back to my room and sh*t got real. Sh*t got awkward… lot of intermittent sex and talking."

As if sh*t wasn't awkard enough, Liz was on the next group date, held at the Museum of Broken Relationships, where she decided to reveal her past with Nick to the whole group.

EXCLUSIVE: Nick Viall Addresses 'Bachelor' Bombshell With Liz and How Many Women He Sleeps With This Season!

"So, Nick. When I first met you, it was in a hotel lobby, and I was immediately attracted to you…The next day, I saw you again at a celebration of love and friendship at Jade and Tanner's wedding," she announced during her breakup performance. "I know that we had a lot of fun, but I've been hurt and I wasn't ready to fully let you in. I hope that when you find the girl you're willing to fight for, that you wish you would've fought for me… I know it may be the end of the chapter for us, but I hope it's a beautiful beginning for you."

Nick's heartfelt response? "I'm so confused," he said, before later revealing that Liz's comments made him feel like he's "living my nightmare," even after Josephine slapped him in the face during her performance.

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Later on in the date, Nick finally gave Liz the confrontation she's been dying for.

"[Your appearance on the show] certainly raised questions that I had. I haven't heard from you, and while we didn't exchange numbers, we have mutual friends, and if you wanted to pursue a relationship we me, you could've reached out," Nick said to Liz's absolutely amazing defense: "I didn't want the wrong impression to come off… I don't like phone conversations."

"I definitely have the clarity I've been looking for, and I just don't think we have a future," Nick replied. "It's going to be the best for the both of us if I say goodbye tonight."

EXCLUSIVE: 'Bachelor' Nick Viall on Whether He’ll Hook Up With Women Before Fantasy Suites

As for how the other girls will react to Nick and Liz's one-night stand, it looks like we'll have to wait until "Next week, on The Bachelor."

The Bachelor
airs Mondays at 8 p.m. ET/PT on ABC.

ET caught up with Liz's BFF, Jade Roper, last week, where she revealed that she was "disappointed" with how Nick treated her maid of honor.

See more in the video below.