The Bachelorette reunion special featured former stars Ali Fedotowsky, Becca Kufrin, JoJo Fletcher, Kaitlyn Bristowe, and Rachel Lindsay spilling some dirty, juicy secrets about themselves or their time on the franchise.

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The Bachelorette Reunion: The Biggest Bachelorette Reunion In Bachelor History Ever! aired Monday night on ABC and starred 12 former The Bachelorette stars, who all gathered in the famed Bachelor mansion to share their stories of romance and recall some memorable moments in their journeys on the show.

RELATED LINK: 'THE BACHELORETTE' COUPLES NOW: WHOM DID 'THE BACHELORETTE' STARS AND THEIR BACHELOR PICKS ULTIMATELY END UP WITH?! (PHOTOS)

The reunion special featured Trista Sutter from Season 1, DeAnna Pappas from Season 4, Jillian Harris from Season 5, Ali Fedotowsky from Season 6, Ashley Hebert from Season 7, Emily Maynard from Season 8, Desiree Hartsock from Season 9, Andi Dorfman from Season 10, Kaitlyn Bristowe from Season 11, JoJo Fletcher from Season 12, Rachel Lindsay from Season 13, and Becca Kufrin from Season 14.

Throughout the two-hour broadcast, a handful of leading ladies shared deep-dark secrets with viewers at home -- and the most shocking of the bunch arguably belonged to Ali.

"Honestly, I don't think I've ever told anybody this, but after [Roberto Martinez] and I broke up, I actually went on a date with [Frank Neuschaefer] and we were romantic for, like, a night!" Ali revealed.

The Bachelorette's sixth season in 2010 had featured Frank determining he had lingering feelings for his former girlfriend and so he eventually decided to dump Ali and leave the reality dating competition altogether.

Ali thought Frank handled the situation poorly and slammed him for being dishonorable and disrespectful at the time.

Frank's exit left only two men in the running for the Bachelorette's heart --Roberto and Chris Lambton -- and Roberto ended up winning Ali's final rose, although they later split.

Ali is now happily married to Kevin Manno and the couple has two children together (meanwhile, Chris married former The Bachelor bachelorette Peyton Lambton and they have two children as well).

RELATED LINK: 'THE BACHELOR' FRANCHISE COUPLES NOW: WHO IS STILL TOGETHER?? (PHOTOS)

Becca disclosed how she and fiance Garrett Yrigoyen got a little too frisky in the Fantasy Suite during The Bachelorette's fourteenth season last year.

"Here's a fun little secret from Fantasy Suites: The night that Garrett and I spent the night together, we may have broken the bed," Becca told the cameras during the reunion special. "Sorry, Mom!"

Becca and Garrett are still going strong and recently moved into a place in San Diego, CA, together.

As for JoJo -- who is currently happily engaged to The Bachelorette's twelfth-season winner, Jordan Rodgers -- divulged how she had gotten pretty sick during her first night on the job.

"One of my dirtiest secrets from my time on The Bachelorette is that I projectile vomited on my first Rose Ceremony ever," JoJo admitted. "And let me tell you, it was dirty. It was really gross!"

JoJo was later shown elaborating on what happened while gossiping with her fellow former The Bachelorette stars.

"After we finished Night 1, I'm going back to the hotel where I was staying and I'm going up the stairs and I just start projectile vomiting because of pure exhaustion," JoJo recalled.

"I'm just vomiting over this ledge. Everyone thinks I'm just hammered!"

And Kaitlyn proved she holds her girlfriends in high regard.

Following "girl code" rules, Kaitlyn apparently asked for Becca's permission to date her now-boyfriend Jason Tartick, who made it to the Final 3 on Becca's season.

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"I think most people know by now that Jason and I are a couple," Kaitlyn noted. "What people might not know is that I chose to reach out to Becca before and make sure it was okay. Because I'm a big Becca guy, and I'm a classy lady."

Kaitlyn and Jason went public with their relationship in January, a couple of months after Kaitlyn announced she had called off her engagement to Shawn Booth, the winner of The Bachelorette's eleventh season whom she had dated for over three years.

Kaitlyn and Jason have already said, "I love you," to each other and appear to be totally smitten.

Rachel disclosed a behind-the-scenes moment from when she competed on Nick Viall's season of The Bachelor in 2017.

"Something that most people don't know about me is that I passed out in the Fantasy Suites when I was with Nick," Rachel confessed.

"You know, it's set up to be this romantic, passionate evening, but for me, it was where I got my best night's sleep."

Although Rachel failed to win Nick's heart, she ultimately got engaged to The Bachelorette's thirteenth-season winner Bryan Abasolo and the couple is currently planning their Summer 2019 wedding.

In addition, Jillian admitted she was guilty of lighting her room on fire one night during her The Bachelorette season by falling asleep with candles on.

Jillian is now a mother of two and engaged to Justin Pasutto.

Now that The Bachelorette reunion has wrapped, Hannah Brown's edition of The Bachelorette will premiere next week on Monday, May 13 at 8PM ET/PT on ABC.

RELATED LINK: 'THE BACHELOR' COUPLES NOW: WHO DID 'THE BACHELOR' STARS AND THEIR BACHELORETTE PICKS ACTUALLY END UP MARRYING? (PHOTOS)

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