Kaley Cuoco and Johnny Galecki slam dating rumors: 'No home wreckers or secret flings'

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Kaley Cuoco and Johnny Galecki Slam Romance Rumors With Cute Photos

"The Big Bang Theory" co-stars Kaley Cuoco and Johnny Galecki are debunking rumors that they've rekindled their romance following Cuoco's divorce filing.

"So sorry to disappoint, but no home wreckers or secret flings going on here," Cuoco, 29, posted to Instagram on Wednesday. "Me and @sanctionedjohnnygalecki are just the best of buds -- Leonard and Penny will just have to suffice!"

WATCH: Why Kaley Cuoco Ended Her Marriage With Ryan Sweeting

The post seems to be in response to tabloid articles claiming that the former couple have become more than friends.

Galecki, 40, echoed Cuoco's sentiment in a post of his own, writing, "No scandals / home wreckers / pregnancies here, y'all. Just profound friendship."

No scandals / home wreckers / pregnancies here, y'all. Just profound friendship. @normancook ❤️

A photo posted by Johnny Galecki (@sanctionedjohnnygalecki) on

Last month, Cuoco announced that she was divorcing her husband of 21 months, 28-year-old tennis pro Ryan Sweeting. The split came after she took to Instagram in April to deny whispers that she and Sweeting were growing apart.

WATCH: Kaley Cuoco Gives First Interview Since Ryan Sweeting Split

"I have never been more proud of anyone on this planet," Cuoco wrote at the time. "This guy is fighting back from a whirlwind of injuries and not to mention constant 'conversation' regarding our marriage and basically any daily decision we decide to make."

Just days before the split announcement, Cuoco addressed what it was like working with an ex on her hit CBS sitcom, telling a caller on Watch What Happens Live that there is no awkwardness between them.

"Well, we dated like five years ago, so I think we both moved on," she said. "Johnny is actually one of my best friends. It's a situation that ended well. I understand sometimes it doesn't. It could have gone horrible."

Cuoco continued to sing Galecki's praises, revealing that he even got along with her husband. "He's one of my dearest friends and Ryan loves him. Johnny loves [Ryan]," she said. "I got lucky."

As for the divorce, a source close to Sweeting told ET, "It didn't come out of left field or a shock to anyone close to them ... it was a long time coming."

WATCH: Kaley Cuoco-Sweeting Says Husband 'Loves' Her Ex-Boyfriend Johnny Galecki

"She realized she wants to be with a guy who has a job and is motivated," our source added. "All of Ryan's friends knew it was going to end bad."

Sweeting, who turned pro in 2007, won his first and only title in 2011, when he beat Kei Nishikori of Japan at the U.S. Men's Clay Court Championships in Houston.

RELATED: Kaley Cuoco and Ryan Sweeting together before their split

25 PHOTOS
Kaley Cuoco and Ryan Sweeting together
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Kaley Cuoco and Johnny Galecki slam dating rumors: 'No home wreckers or secret flings'
CULVER CITY, CA - AUGUST 22: Ryan Sweeting and Kaley Cuoco attend the LG 'Fam To Table' series at The Washbow on August 22, 2015 in Culver City, California. (Photo by Jason LaVeris/FilmMagic)
LONDON, ENGLAND - JUNE 02: Kaley Cuoco Sweeting and Ryan Sweeting attends the Glamour Women Of The Year Awards at Berkeley Square Gardens on June 2, 2015 in London, England. (Photo by Danny Martindale/WireImage)
BEVERLY HILLS, CA - AUGUST 21: Actress Kaley Cuoco and Ryan Sweeting attend The Beverly Hilton celebrates 60 years with a diamond anniversary party at The Beverly Hilton Hotel on August 21, 2015 in Beverly Hills, California. (Photo by Randy Shropshire/Getty Images)
LONDON, ENGLAND - JUNE 02: Ryan Sweeting and Kaley Cuoco attending the Glamour awards on June 2, 2015 in London, England. (Photo by Mark Robert Milan/GC Images)
HOLLYWOOD, CA - JANUARY 06: Ryan Sweeting and Kaley Cuoco attend the premiere of 'The Wedding Ringer' at TCL Chinese Theatre on January 6, 2015 in Hollywood, California. (Photo by Jason LaVeris/FilmMagic)
BEVERLY HILLS, CA - DECEMBER 18: Professional tennis player Ryan Sweeting (L) and actress Kaley Cuoco-Sweeting attend The PEOPLE Magazine Awards at The Beverly Hilton Hotel on December 18, 2014 in Beverly Hills, California. (Photo by C Flanigan/Getty Images)
LOS ANGELES, CA - NOVEMBER 14: Ryan Sweeting (L) and Kaley Cuoco attend a basketball game between the San Antonio Spurs and the Los Angeles Lakers at Staples Center on November 14, 2014 in Los Angeles, California. (Photo by Noel Vasquez/GC Images)
HOLLYWOOD, CA - OCTOBER 29: Actress Kaley Cuoco and husband Ryan Sweeting at The Hollywood Walk Of Fame ceremony for Kaley Cuoco on October 29, 2014 in Hollywood, California. (Photo by Albert L. Ortega/Getty Images)
LOS ANGELES, CA - AUGUST 25: Actress Kaley Cuoco (R) and husband Ryan Sweeting (L) attend HBO's 2014 Emmy after party at The Plaza at the Pacific Design Center on August 25, 2014 in Los Angeles, California. (Photo by Barry King/FilmMagic)
BEVERLY HILLS, CA - OCTOBER 20: Actress Kaley Cuoco-Sweeting (L) and professional tennis player Ryan Sweeting arrive at the 21st Annual ELLE Women In Hollywood Awards at Four Seasons Hotel Los Angeles at Beverly Hills on October 20, 2014 in Beverly Hills, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
WEST HOLLYWOOD, CA - AUGUST 23: Actress Kaley Cuoco and husband Ryan Sweeting attend the 2014 Entertainment Weekly pre-Emmy party at Fig & Olive Melrose Place on August 23, 2014 in West Hollywood, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - JUNE 25: Kaley Cuoco and Ryan Sweeting are seen in Los Angeles on June 25, 2014 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
BEVERLY HILLS, CA - JUNE 19: Actress Kaley Cuoco (R) and Ryan Sweeting attend the 4th Annual Critics' Choice Television Awards at The Beverly Hilton Hotel on June 19, 2014 in Beverly Hills, California. (Photo by Kevin Winter/Getty Images for Critics' Choice Television Awards)
LOS ANGELES, CA - MAY 26: Kaley Cuoco Sweeting and Ryan Sweeting are seen on May 26, 2014 in Los Angeles, California. (Photo by GONZALO/Bauer-Griffin/GC Images)
BEVERLY HILLS, CA - MARCH 26: Ryan Sweeting and Kaley Cuoco attend the 22nd 'A Night At Sardi's' at The Beverly Hilton Hotel on March 26, 2014 in Beverly Hills, California. (Photo by Jason LaVeris/FilmMagic)
CALABASAS, CA - MARCH 22: (L-R) Actress Kaley Cuoco Sweeting and tennis professional Ryan Sweeting play in a celebrity tennis match at the 2014 USTA Men's Pro Tennis Championships Of Calabasas at the Calabasas Tennis & Swim Club on March 22, 2014 in Calabasas, California. (Photo by John M. Heller/Getty Images)
CALABASAS, CA - MARCH 22: (L-R) Tennis professional Ryan Sweeting and actress Kaley Cuoco Sweeting play in a celebrity tennis match at the 2014 USTA Men's Pro Tennis Championships Of Calabasas at the Calabasas Tennis & Swim Club on March 22, 2014 in Calabasas, California. (Photo by John M. Heller/Getty Images)
LOS ANGELES, CA - FEBRUARY 25: Kaley Cuoco and Ryan Sweeting seen at LAX airport on February 25, 2014 in Los Angeles, California. (Photo by GVK/Bauer-Griffin/GC Images)
NEW YORK, NY - FEBRUARY 24: Kaley Cuoco and Ryan Sweeting attend the Dallas Mavericks vs New York Knicks game at Madison Square Garden on February 24, 2014 in New York City. (Photo by James Devaney/GC Images)
ANAHEIM, CA - FEBRUARY 15: In this handout photo provided by Disney Parks, newlyweds tennis professional Ryan Sweeting and actress Kaley Cuoco Sweeting take a ride on The Mad Tea Party attraction at Disneyland on February 15, 2014 in Anaheim, California. (Photo by Paul Hiffmeyer/Disney Parks via Getty Images)
LOS ANGELES, CA - JANUARY 18: Actress Kaley Cuoco and husband Ryan Sweeting arrive at the 20th Annual Screen Actors Guild Awards at The Shrine Auditorium on January 18, 2014 in Los Angeles, California. (Photo by Jon Kopaloff/FilmMagic)
BEVERLY HILLS, CA - JANUARY 12: Actress Kaley Cuoco and Ryan Sweeting arrive at the 2014 InStyle And Warner Bros. 71st Annual Golden Globe Awards post-party at The Beverly Hilton Hotel on January 12, 2014 in Beverly Hills, California. (Photo by Gregg DeGuire/WireImage)
LOS ANGELES, CA - JANUARY 08: Actress Kaley Cuoco and tennis player Ryan Sweeting attend The 40th Annual People's Choice Awards at Nokia Theatre L.A. Live on January 8, 2014 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for The People's Choice Awards)
LOS ANGELES, CA - NOVEMBER 03: Tennis Player Ryan Sweeting and actress Kaley Cuoco attend 'Stand Up For Pits' Los Angeles Charity awareness and fundraising comedy night at Largo on November 3, 2013 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
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