'It was a creepy James Bond casino': Tina Fey admits she was mistaken for prostitute in Monaco as she reunites with SNL alum Jimmy Fallon and Amy Poehler

They starred together nearly 15 years ago on Saturday Night Live.

And though Tina Fey, Amy Poehler and Jimmy Fallon share a longtime friendship and working relationship, they are still finding out new things about each other.

The three stars reunited for a mini-reunion on Jimmy's The Tonight Show on Wednesday night as they played a game of True Confessions where one of the contestants revealed a rather scandalous, but entertaining story from their younger years.

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Opening up: Tina Fey made a big revelation about her past during an appearance on The Tonight Show on Wednesday night

Opening up: Tina Fey made a big revelation about her past during an appearance on The Tonight Show on Wednesday night

Reunion: The 45-year-old star joined Amy Poehlerfor the appearance on Jimmy Fallon's show, as they all starred on Saturday Night Live together nearly 15 years ago

Reunion: The 45-year-old star joined Amy Poehlerfor the appearance on Jimmy Fallon's show, as they all starred on Saturday Night Live together nearly 15 years ago

During the game, Tina, 45, opened up about being on a trip through Europe with her cousin as they ended up in a casino in Monaco where she ended up being mistaken for a lady of the night.

As the segment works, the Mean Girls star makes a statement about their past as the other two query them on it and try to figure out whether it was a true or lie.

Tina opened the envelope with the statement: 'I was once mistaken for a prostitute in Monaco.'

True or false: The trio played a game of True Confessions to reveal either a truth or lie about their past

True or false: The trio played a game of True Confessions to reveal either a truth or lie about their past

Scandalous: The 45-year-old Tina was the first in the hot seat as her envelope read: 'I was once mistaken for a prostitute in Monaco'

Scandalous: The 45-year-old Tina was the first in the hot seat as her envelope read: 'I was once mistaken for a prostitute in Monaco'

Under the spotlight: Jimmy, 40, and 43-year-old Amy were to question Tina on her story and ultimately decide whether they thought it was the truth or a lie

Under the spotlight: Jimmy, 40, and 43-year-old Amy were to question Tina on her story and ultimately decide whether they thought it was the truth or a lie

Jimmy, 40, and Amy begin questioning Tina as she puts together the puzzle as she reveals it was during a European holiday with her cousin in 1992.

When Amy, 43, queried her on what she was wearing straight-faced Tina said: ' I could tell you, I was wearing a brown and white polka dot jumpsuit that I had bought at Express. It looked fantastic.'

Tina went on to explain why they were there in the first place as she says: 'I went to a casino there because my cousin is from New Jersey and we thought it was going to be fun like an Atlantic City casino, but it was like a creepy James Bond casino. There were only like 40 people there.'

Admission: Tina said the incident in Monaco came during a European holiday with her cousin

Admission: Tina said the incident in Monaco came during a European holiday with her cousin

Dingy: The Mean Girls star explained that there was an odd quiet vibe about the establishment as 'it was like a creepy James Bond casino'

Dingy: The Mean Girls star explained that there was an odd quiet vibe about the establishment as 'it was like a creepy James Bond casino'

When it came to whether Amy and Jimmy thought it was a truth or lie both thought she was not telling the truth. However it ended up being the truth.

Tina revealed that there was an odd quiet vibe in the casino with 'weird Europeans gambling' and they ended up being the youngest people in the establishment.

The 30 Rock star elaborated more saying: 'Then this older gentleman came over and was like "I would like to buy the two of you dinner in this restaurant here." And it was like this weird restaurant in the back and my cousin was like "yeah," but I was like "I don't think it's a good idea."

Can't keep a straight face: Jimmy burst into laughter as Tina came to the conclusion: 'And it sort of became clear that the only possible explanation for why we would have been in there was because we were prostitutes'

Can't keep a straight face: Jimmy burst into laughter as Tina came to the conclusion: 'And it sort of became clear that the only possible explanation for why we would have been in there was because we were prostitutes'

Having a blast: The trio that has had a longtime friendship and working relationship with each other shared plenty of boisterous laughter during the segment

Having a blast: The trio that has had a longtime friendship and working relationship with each other shared plenty of boisterous laughter during the segment

And it sort of became clear that the only possible explanation for why we would have been in there was because we were prostitutes.'

That interesting story from Tina's early Twenties was not the only treat she and Amy brought to the show as they promoted their upcoming comedy Sisters and introduced the trailer for the upcoming flick.

Great poker face: Both Amy and Jimmy thought that the story was a lie, but Tina revealed it was actually the truth

Great poker face: Both Amy and Jimmy thought that the story was a lie, but Tina revealed it was actually the truth

The teaser for the R-rated movie portrayed Amy as the 'perfect sister' Maura Ellis while Tina was described as the 'other sister' Katie Ellis.

The film also stars Maya Rudolph, Dianne Wiest, Kate McKinnon, John Cena, John Leguizamo, Rachel Dratch, Bobby Moynihan and Madison Davenport.

The R-rated comedy, Sisters, will hit theatres on Christmas Day. 

Together again: Amy and Tina unveiled the trailer for their upcoming comedy titled SIsters

Together again: Amy and Tina unveiled the trailer for their upcoming comedy titled SIsters

Sister act: Tina and Amy portray siblings in the comedy due out in December
Sister act: Tina and Amy portray siblings in the comedy due out in December

Sister act: Tina and Amy portray siblings in the comedy due out in December

Dancing queens: The former Saturday Night Live stars showed their dance moves in the trailer

Dancing queens: The former Saturday Night Live stars showed their dance moves in the trailer

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