'American Pie' cast reveals secret on-set crushes 20 years later (exclusive)

It has been 20 years since audiences first got a taste of warm apple pie in the 1999 teen comedy American Pie. The movie tells the story of four high school best friends who enter into a pact to lose their virginity by prom night -- leading to hilarious and often humiliating sexual encounters. American Pie went on to make more than $235 million at the worldwide box office and spawn three sequels.

But when ET reunited the cast to celebrate the 20th anniversary of the first film, the gang -- Jason Biggs, Alyson Hannigan, Natasha Lyonne, Tara Reid, Seann William Scott, Chris Klein and Eddie Kaye Thomas -- proved old crushes die hard. While no one recalled any actual on-set hookups -- "a missed moment," as Hannigan called it -- they didn't shy away from revealing the on-set crushes they'd kept a secret for two decades.

"I had a little crush on Alyson," Biggs revealed to ET's Kevin Frazier.

"You did?!" Hannigan exclaimed.

21 PHOTOS
Alyson Hannigan through the years
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Alyson Hannigan through the years
Alyson Hannigan during 1998 MTV Video Music Awards at Universal Amphitheatre in Universal City, California, United States. (Photo by Jim Smeal/Ron Galella Collection via Getty Images)
Actress Alyson Hannigan at NICKELODEON party. (Photo by Mirek Towski/DMI/The LIFE Picture Collection via Getty Images/Getty Images)
Actress Alyson Hannigan and actress Sarah Michelle Gellar attend the 15th Annual MTV Video Music Awards on September 10, 1998 at Universal Amphitheatre in Universal City, California.
Alyson Hannigan & Jason Biggs at the 1999 Teen Choice Awards in Los Angeles. (Photo by Jeff Kravitz/FilmMagic)
Alyson Hannigan (Photo by SGranitz/WireImage)
LOS ANGELES, CA - AUGUST 16: Alyson Hannigan attends Creative Coalition Benefit for CRPF on August 16, 2000 in Los Angeles, California. (Photo by Ron Galella, Ltd./Ron Galella Collection via Getty Images)
Alyson Hannigan during "'Buffy' The Musical: Once More, With Feeling" Premiere Screening at Paramount Studios in Los Angeles, California, United States. (Photo by J. P. Aussenard/WireImage)
Alyson Hannigan during Nintendo Goes Platinum! - Arrivals in Hollywood, California, United States. (Photo by SGranitz/WireImage)
Alyson Hannigan during Lucky Magazine and Lulu Guinness Host Holiday Party at the Lulu Guinness Boutique in Los Angeles at The Lulu Guinness Boutique in Los Angeles, California, United States. (Photo by A. Nevader/WireImage)
Alyson Hannigan at City Hall in London where the actress helped to launch the "Get Into London Theatre!" promotion. (Photo by Fred Duval/FilmMagic)
Alyson Hannigan at the 2004 Target A Time for Heroes Celebrity Carnival to benefit the Elizabeth Glaser Pediatric AIDS Foundation (Photo by SGranitz/WireImage)
Alyson Hannigan during The Cast of "How I Met Your Mother" Host "Speed Dating at Grand Central" at Vanderbilt Hall, Grand Central Station in New York City, New York, United States. (Photo by Jemal Countess/WireImage)
NEW YORK - MAY 13: Actress Alyson Hannigan Visits MTV's "TRL" on May 13, 2006 in New York City. (Photo by George Napolitano/FilmMagic)
LOS ANGELES, CA - OCTOBER 15: Alyson Hannigan attends ELLE Magazine 14th Annual Women in Hollywood Event at Four Seasons Hotel on October 15, 2007 in Los Angeles, CA. (Photo by ANDREAS BRANCH/Patrick McMullan via Getty Images)
HOLLYWOOD - NOVEMBER 13: Actress Alyson Hannigan arrives at the Best Friends Animal Society's 15th Annual Lint Roller Party held held at the Hollywood Palladium on November 13, 2008 in Hollywood, California. (Photo by Barry King/WireImage)
TODAY -- Airdate 11/30/2009 -- Pictured: Alyson Hannigan appears on NBC News' "Today" show (Photo by Peter Kramer/NBC/NBCU Photo Bank via Getty Images)
Actress Alison Hannigan arrives at the world premiere of "The Muppets" held at the El Capitan Theater in Hollywood (Photo by Frank Trapper/Corbis via Getty Images)
Actress Alyson Hannigan arrives at the premiere of American Reunion held at Grauman's Chinese Theater in Hollywood. (Photo by Frank Trapper/Corbis via Getty Images)
BEVERLY HILLS, CA - DECEMBER 11: Alyson Hannigan arrives at the The Hollywood Reporter's Women In Entertainment Breakfast Honoring Oprah Winfrey at Beverly Hills Hotel on December 11, 2013 in Beverly Hills, California. (Photo by Steve Granitz/WireImage)
LOS ANGELES, CA - SEPTEMBER 08: Actress Alyson Hannigan attends the 2018 Creative Arts Emmy Awards - Day 1 at Microsoft Theater on September 8, 2018 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
LOS ANGELES, CALIFORNIA - JUNE 11: Alyson Hannigan arrives to the Los Angeles premiere of Disney and Pixar's "Toy Story 4" held on June 11, 2019 in Los Angeles, California. (Photo by Michael Tran/FilmMagic)
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While their characters, Jim and Michelle, end up together in the movie, not every crush was limited to onscreen love interests. Much to Scott's surprise, he discovered he had multiple would-be suitors back in the day. "I had a little crush on you, Seann, actually," Reid admitted with a smile.

"Really? I had no idea!" Scott responded.

He may have been crushing on someone else at the time, as it were, as Lyonne teased a juicy memory from filming. "I remember something I was thinking about, Seann," she cheekily began. "I remember a zany phone call. You called me, and I'm thrilled about this…"

"This is exciting! I want to know," Hannigan chimed in. "This is like an exclusive."

32 PHOTOS
Tara Reid out and about
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Tara Reid out and about
LOS ANGELES, CA - SEPTEMBER 26: Tara Reid is seen on September 26, 2018 in Los Angeles, CA. (Photo by GP/Star Max/GC Images)
BEVERLY HILLS, CA - SEPTEMBER 22: Tara Reid attends the Los Angeles LGBT Center's 49th Anniversary Gala Vanguard Awards at The Beverly Hilton Hotel on September 22, 2018 in Beverly Hills, California. (Photo by Jesse Grant/Getty Images)
BEVERLY HILLS, CA - SEPTEMBER 22: (L-R) Tara Reid and Kelly Ripa attend the Los Angeles LGBT Center's 49th Anniversary Gala Vanguard Awards at The Beverly Hilton Hotel on September 22, 2018 in Beverly Hills, California. (Photo by Vivien Killilea/Getty Images for Los Angeles LGBT Center )
HOLLYWOOD, CA - SEPTEMBER 14: Tara Reid attends the 2018 Daytime Hollywood Beauty Awards on September 14, 2018 in Hollywood, California. (Photo by Tommaso Boddi/WireImage)
LOS ANGELES, CA - AUGUST 19: Actress Tara Reid arrives for the premiere of The Asylum and Syfy's 'The Last Sharknado: It's About Time' held at Cinemark Playa Vista on August 19, 2018 in Los Angeles, California. (Photo by Albert L. Ortega/Getty Images)
TODAY -- Pictured: (l-r) Ian Ziering and Tara Reid on Friday, August 17, 2018 -- (Photo by: Tyler Essary/NBC/NBCU Photo Bank via Getty Images)
NEW YORK, NY - AUGUST 17: Tara Reid is seen on August 17, 2018 in New York City. (Photo by MediaPunch/Bauer-Griffin/GC Images)
NEW YORK, NY - AUGUST 16: Tara Reid is seen on August 16, 2018 in New York City. (Photo by MediaPunch/Bauer-Griffin/GC Images)
NEW YORK, NY - AUGUST 16: Tara Reid is seen on August 16, 2018 in New York City. (Photo by MediaPunch/Bauer-Griffin/GC Images)
DAILY POP -- Episode 180914 -- Pictured: (l-r) Actress Tara Reid poses for a photo -- (Photo by: Aaron Poole/E! Entertainment/NBCU Photo Bank via Getty Images)
SAN DIEGO, CA - JULY 21: Tara Reid attends the annual Entertainment Weekly Comic-Con Celebration at Float at Hard Rock Hotel San Diego on July 21, 2018 in San Diego, California. (Photo by C Flanigan/FilmMagic)
SAN DIEGO, CA - JULY 20: Tara Reid attends the #IMDboat Party At San Diego Comic-Con 2018, Sponsored By Atom Tickets at The IMDb Yacht on July 20, 2018 in San Diego, California. (Photo by Tommaso Boddi/Getty Images for IMDb)
SAN DIEGO, CA - JULY 20: Actors Ian Ziering and Tara Reid attend the #IMDboat At San Diego Comic-Con 2018: Day Two at The IMDb Yacht on July 20, 2018 in San Diego, California. (Photo by Rich Polk/Getty Images for IMDb)
SAN DIEGO, CA - JULY 19: Tara Reid attends AMC's 'Better Call Saul' Season 4 Premiere at UA Horton Plaza 8 on July 19, 2018 in San Diego, California. (Photo by Jerod Harris/Getty Images)
BEVERLY HILLS, CA - MAY 05: Tara Reid attends the Steve Irwin Gala Dinner 2018 at SLS Hotel on May 5, 2018 in Beverly Hills, California. (Photo by Jon Kopaloff/FilmMagic)
HOLLYWOOD, CA - APRIL 12: Tara Reid arrives to the Los Angeles Premiere of Universal Pictures' 'Blumhouse's Truth Or Dare' held at ArcLight Cinemas - Cinerama Dome on April 12, 2018 in Hollywood, California. (Photo by Michael Tran/FilmMagic)
STUDIO CITY, CA - APRIL 08: Actress Tara Reid attends the release party for Vivica A. Fox's new book 'Every Day I'm Hustling' at Rain Bar and Lounge on April 8, 2018 in Studio City, California. (Photo by Paul Archuleta/Getty Images)
LOS ANGELES, CA - JULY 27: Tara Reid attends Art with a Cause on July 27, 2017 in Los Angeles, California. (Photo by Matt Winkelmeyer/Getty Images)
LOS ANGELES, CA - JULY 27: Tara Reid attends Art with a Cause on July 27, 2017 in Los Angeles, California. (Photo by Matt Winkelmeyer/Getty Images)
SAN DIEGO, CA - JULY 22: Tara Reid at Entertainment Weekly's annual Comic-Con party in celebration of Comic-Con 2017 at Float at Hard Rock Hotel San Diego on July 22, 2017 in San Diego, California. (Photo by Todd Williamson/Getty Images for Entertainment Weekly)
SAN DIEGO, CA - JULY 21: Actress Tara Reid from SyFy's 'Sharknado 5: Global Swarming' poses for a portrait during Comic-Con 2017 at Hard Rock Hotel San Diego on July 21, 2017 in San Diego, California. (Photo by Robby Klein/Getty Images)
SAN DIEGO, CA - JULY 21: Actor Tara Reid on the #IMDboat at San Diego Comic-Con 2017 at The IMDb Yacht on July 21, 2017 in San Diego, California. (Photo by Rich Polk/Getty Images for IMDb)
HOLLYWOOD, CA - JULY 17: Actress Tara Reid arrives for the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' held at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Albert L. Ortega/Getty Images)
LOS ANGELES, CA - JUNE 14: Actress Tara Reid attends the premiere of Lionsgate's 'All Eyez On Me' on June 14, 2017 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
NEW YORK, NY - JUNE 05: Tara Reid is seen on June 05, 2017 in New York City. (Photo by Ignat/Bauer-Griffin/GC Images)
LOS ANGELES, CA - MAY 13: Tara Reid is seen on May 13, 2017 in Los Angeles, CA. (Photo by Hollywood To You/Star Max/GC Images)
HOLLYWOOD, CA - MAY 17: Actress Tara Reid attends OK! Magazine's Summer kick-off party at The W Hollywood on May 17, 2017 in Hollywood, California. (Photo by Paul Archuleta/FilmMagic)
LOS ANGELES, CA - MARCH 16: Tara Reid is seen on March 16, 2017 in Los Angeles, California. (Photo by BG018/Bauer-Griffin/GC Images)
WESTWOOD, CA - NOVEMBER 03: Actress Tara Reid arrives for the Premiere Of Universal's 'Almost Christmas' held at Regency Village Theatre on November 3, 2016 in Westwood, California. (Photo by Albert L. Ortega/Getty Images)
LOS ANGELES, CA - OCTOBER 30: Actress Tara Reid is seen on October 30, 2016 at a Halloween Party in Los Angeles, California. (Photo by SMXRF/Star Max/GC Images)
LOS ANGELES, CA - OCTOBER 22: Actress Tara Reid attends Maxim Magazine's annual Halloween party on October 22, 2016 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
HOLLYWOOD, CA - OCTOBER 06: Actress Tara Reid attends the 2016 Latin American Music Awards at Dolby Theatre on October 6, 2016 in Hollywood, California. (Photo by Matt Winkelmeyer/Getty Images)
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"I got to say, I'm still very flattered by this phone call. Seann, do you remember what happened?” Lyonne asked, putting Scott in the hot seat, to which he shyly replied, "I mean, not all the details."

"He's blushing!” Hannigan pointed out of a clearly flushed-faced Scott.

While Lyonne went on to clarify that nothing "ever happened, per se," all of their co-stars claimed that none of them knew anything ever almost happened, with Biggs teasing Scott about his failed flirting and Hannigan requesting a reenactment of the call.

"You had to dial, it was probably rotary," she joked.

"You had to talk to the operator," Biggs piggy-backed.

Ultimately, Scott passed on revealing any more -- confessing "I'm shy," in a truly un-Stifler move -- while Lyonne was pressed on whether she had actually turned him down all those years ago. "Listen," Lyonne played coy. "It was sweet and innocent."

"He's so cute," Hannigan said of a still-blushing Scott.

"I know he was. He's still really cute!" Lyonne replied. "If I could go back, I would try to hook up with Eddie and Seann. I feel like that's one of my regrets now."

Secret unrequited crushes aside, the cast of American Pie had plenty of shared memories to relive 20 years later, revealing more secrets from the set and reflecting on the film's lasting legacy. Make sure you check out ET's entire American Pie reunion coverage here.

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