Blake Lively and Ryan Reynolds celebrate 4th anniversary ahead of baby No. 2's arrival

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Blake Lively and Ryan Reynolds have something special to celebrate just before the arrival of their second child: four years as husband and wife.

The Hollywood pair said "I do" on Sept. 9, 2012 in a secret ceremony in Charleston, South Carolina.

EXCLUSIVE: Ryan Reynolds Reveals the Adorable Way He Keeps His Daughter Close on Red Carpets

Since their big day, the two former co-stars have gone on to expand their family. In December 2014 they welcomed their first child, daughter James, and their second little one is expected to be born in late October, a source tells ET.

With one kid and another on the way, the couple has always managed to keep their sense of humor about each other, especially after they embarked on the roles of Mom and Dad. Take a look at some of their most hilarious quotes:

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"Just want to wish Billy Ray Cyrus the most special, magical birthday ever. I love you with all my heart. Also, Happy Birthday to my wife," Reynolds playfully tweeted to his wife last month.

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Blake Lively and Ryan Reynolds together
Actor Ryan Reynolds and Blake Lively arrive at a State Dinner in honor of Canadian Prime Minister Justin Trudeau at the White House in Washington on March 10, 2016. / AFP / CHRIS KLEPONIS (Photo credit should read CHRIS KLEPONIS/AFP/Getty Images)
NEW YORK, NY - FEBRUARY 10: Actors Blake Lively and Ryan Reynolds attend the 2016 amfAR New York Gala at Cipriani Wall Street on February 10, 2016 in New York City. (Photo by Gilbert Carrasquillo/FilmMagic)
NEW YORK, NY - FEBRUARY 08: Ryan Reynolds and Blake Lively attend 'Deadpool' fan event at AMC Empire Theatre on February 8, 2016 in New York City. (Photo by Laura Cavanaugh/FilmMagic)
Blake Lively and Ryan Reynolds attend the '2016 amfAR' New York Gala - outside arrivals in New York City. �� LAN (Photo by Lars Niki/Corbis via Getty Images)
NEW YORK, NY - FEBRUARY 08: Ryan Reynolds and Blake Lively attend 'Deadpool' fan event at AMC Empire Theatre on February 8, 2016 in New York City. (Photo by Laura Cavanaugh/FilmMagic)

The only thing better than Blake's dress was her handsome husband, Ryan Reynolds, by her side. (Photo by Dimitrios Kambouris/Getty Images for Gabrielle's Angel Foundation)

NEW YORK, NY - MAY 05: Actors Ryan Reynolds (L) and Blake Lively attend the 'Charles James: Beyond Fashion' Costume Institute Gala at the Metropolitan Museum of Art on May 5, 2014 in New York City. (Photo by Mike Coppola/Getty Images)
NEW YORK, NY - FEBRUARY 12: Designer Gabriela Cadena and Blake Lively pose backstage before the Gabriela Cadena fashion show during Mercedes-Benz Fashion Week Fall 2015 at One World Trade Center on February 12, 2015 in New York City. (Photo by Wendell Teodoro/WireImage)
HOLLYWOOD, CA - JUNE 15: Actors Blake Lively (L) and Ryan Reynolds arrive at the 'Green Lantern' Los Angeles Premiere held at at Grauman's Chinese Theatre on June 15, 2011 in Hollywood, California. (Photo by Lester Cohen/WireImage)
NEW YORK, NY - FEBRUARY 12: Blake Lively poses backstage before the Gabriela Cadena fashion show during Mercedes-Benz Fashion Week Fall 2015 at One World Trade Center on February 12, 2015 in New York City. (Photo by Wendell Teodoro/WireImage)
NEW YORK, NY - FEBRUARY 12: Designer Gabriela Cadena (L) and Actress Blake Lively pose backstage at the Gabriela Cadena fashion show during Mercedes-Benz Fashion Week Fall 2015 on February 12, 2015 in New York City. (Photo by Stephen Lovekin/Getty Images for Gabriela Cadena)
NEW YORK, NY - DECEMBER 02: Blake Lively attends L'Oreal Paris' Ninth Annual Women of Worth Awards at The Pierre Hotel on December 2, 2014 in New York City. (Photo by D Dipasupil/FilmMagic)
NEW YORK, NY - DECEMBER 02: Actress Blake Lively attends L'Oreal Paris' Ninth Annual Women Of Worth Celebration at The Pierre Hotel on December 2, 2014 in New York City. (Photo by Rob Kim/Getty Images)
NEW YORK, NY - DECEMBER 04: Blake Lively is seen in New York City on December 04, 2014 in New York City. (Photo by Ignat/Bauer-Griffin/GC Images)
NEW YORK, NY - NOVEMBER 08: Blake Lively attends 2014 American Made Summit: In Conversation With Martha Stewart And Blake Lively at Martha Stewart Living Omnimedia Headquarters on November 8, 2014 in New York City. (Photo by Laura Cavanaugh/FilmMagic)
CANNES, FRANCE - MAY 16: Ryan Reynolds and Blake Lively attend 'The Captives' Premiere at the 67th Annual Cannes Film Festival>> on May 16, 2014 in Cannes, France. (Photo by Venturelli/WireImage)
NEW YORK, NY - NOVEMBER 08: Actress Blake Lively attends 2014 American Made Summit: In Conversation with Martha Stewart and Blake Lively at Martha Stewart Living Omnimedia Headquarters on November 8, 2014 in New York City. (Photo by Desiree Navarro/WireImage)
Hot mama! Lively put her new pregnancy curves on display in a butter colored Gucci’s Resort 2015 gown, which featured a plunging, embellished neckline for the 2014 Angel Ball in New York City on October 20. (Photo by J. Countess/Getty Images)

Never one to stray away from color, the former "Gossip Girl" star channeled her fashion-loving character Serena and draped her bump in a tribal print poncho as she ran errands in New York City. She polished off the look with a pair of knee-high boots. (Photo by Raymond Hall/GC Images)

Lively is all about the prints! The blond babe put her best foot forward in a printed jumpsuit as she hit the Big Apple in October. (Photo by NCP/Star Max/GC Images)

Lively's first red carpet appearance since she announced her pregnancy was certainly a hit. The Green Lantern" gal sparkled in a Michael Kors gown at the God's Love We Deliver Golden Heart Awards. (Photo by Gilbert Carrasquillo/FilmMagic)
What a wonderful night with @amberrosetamblyn and @travislouie at the opening of his new show in NYC. He is one of my favorite artists and a great father, husband and man! So grateful to know him 😊 Ps. Thank you Amber for playing dress up with me #PreserveStyle Who can iSpy the @preserve_us pieces we borrowed?

Blake Lively announced her pregnancy on her website, Preserve, on October 5, wearing this gorgeous printed orchid Sam & Lavi maternity look. The skirt and blouse combo was a serious hit and practically flew off the shelves.

NEW YORK, NY - OCTOBER 20: Actors Blake Lively and Ryan Reynolds attend 2014 Angel Ball at Cipriani Wall Street on October 20, 2014 in New York City. (Photo by Bennett Raglin/WireImage)
CANNES, FRANCE - MAY 16: Blake Lively and Ryan Reynolds attend the 'Captives' Premiere at the 67th Annual Cannes Film Festival on May 16, 2014 in Cannes, France. (Photo by Foc Kan/FilmMagic)
NEW YORK, NY - OCTOBER 20: Actress Blake Lively (L) and Ryan Reynolds attend Angel Ball 2014 hosted by Gabrielle's Angel Foundation at Cipriani Wall Street on October 20, 2014 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Gabrielle's Angel Foundation)
CANNES, FRANCE - MAY 16: Blake Lively and Ryan Reynolds attend the 'Captives' Premiere at the 67th Annual Cannes Film Festival on May 16, 2014 in Cannes, France. (Photo by Foc Kan/FilmMagic)
CANNES, FRANCE - MAY 16: Blake Lively and Ryan Reynolds attend 'The Captive' Premiere at the 67th Annual Cannes Film Festival on May 16, 2014 in Cannes, France. (Photo by Tony Barson/FilmMagic)
NEW YORK, NY - MAY 05: Blake Lively and Ryan Reynolds attend the 'Charles James: Beyond Fashion' Costume Institute Gala at the Metropolitan Museum of Art on May 5, 2014 in New York City. (Photo by Axelle/Bauer-Griffin/FilmMagic)
NEW YORK, NY - MAY 05: Blake Lively and Ryan Reynolds attend the 'Charles James: Beyond Fashion' Costume Institute Gala at the Metropolitan Museum of Art on May 5, 2014 in New York City. (Photo by Dimitrios Kambouris/Getty Images)
NEW YORK, NY - NOVEMBER 09: (EXCLUSIVE COVERAGE) (L-R) Ryan Reynolds, Blake Lively, Tracy Pollan and Michael J. Fox attend the 2013 A Funny Thing Happened On The Way To Cure Parkinson's event benefiting The Michael J. Fox Foundation for Parkinson's Research at The Waldorf=Astoria on November 9, 2013 in New York City. (Photo by Dimitrios Kambouris/MJF2013/WireImage)
(L-R) Actors Michael Clarke Duncan, Ryan Reynolds, Blake Lively, director Martin Campbell and President Warner Bros. Pictures Group Jeff Robinov arrive at the 'Green Lantern' Los Angeles Premiere held at at Grauman's Chinese Theatre on June 15, 2011 in Hollywood, California.
UNIVERSAL CITY, CA - JUNE 05: Actors Blake Lively (L) and Ryan Reynolds speak onstage during the 2011 MTV Movie Awards at Universal Studios' Gibson Amphitheatre on June 5, 2011 in Universal City, California. (Photo by Kevin Winter/Getty Images)
Actors Ryan Reynolds (L) and Blake Lively arrive at the 'Green Lantern' Los Angeles Premiere held at at Grauman's Chinese Theatre on June 15, 2011 in Hollywood, California.
Actors Ryan Reynolds and Blake Lively accepts award onstage during Spike TV's 'Scream 2010' at The Greek Theatre on October 16, 2010 in Los Angeles, California.
Actors Blake Lively and Ryan Reynolds speak onstage during the 2011 MTV Movie Awards at Universal Studios' Gibson Amphitheatre on June 5, 2011 in Universal City, California.
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Blake Is Sick of Ryan's Sex Scenes

"It's kind of torture these days because I'm on a plane and every screen is my husband in a sex montage throughout the holidays with another woman because everyone wants to watch Deadpool on the plane, everyone!" Lively explained in a hilarious story earlier this summer on Jimmy Fallon's Tonight Show."But for, like, 14 hours having your husband having, like, mashed potatoes eaten out of his butthole – that's in the film – it's very, it's lovely."

"It's a cruel and unusual form of torture," she continued. "And then my daughter goes, 'Dada!' and she starts hugging and kissing the screen and waving at him, and he's not waving back and she doesn't understand why he's not waving back. She thinks it's like FaceTime. And it's because Daddy's getting it."

Ryan Keeps the Humor in the Bedroom

"I want to thank my wife," Reynolds said during his speech at this year's MTV Movie Awards. "Everything I do is to make her laugh -- especially the sex. So, thank you."

Ryan is Confident Blake Can Slay Like Bey

ETONLINE

"My wife knows how to work a red carpet, I'll say that. Yeah, she might be the Beyonce of red carpets," Reynolds said during an interview last summer. "She's turned that into an athletic event. I see what goes into that ... real science. It's unbelievable."

Even Blake Wants to Show Off Ryan's Abs

"...it all started with a spider" -Walt Disney

A photo posted by Blake Lively (@blakelively) on

"Studies show that if you are scared of spiders, you are more likely to find one in your bedroom. ...I'm afraid of Ryan Reynolds," the actress shared in a silly Instagram showing off the shirtless Reynolds last year.

It's a Battlefield When It Comes to Parenting

"We're total rivals," Blake told Jimmy Fallon during her first year of motherhood. "Dada is banned in our house! He's pathetic! I do everything, he does nothing."

For more on Blake and Ryan's romance, watch below:

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