Jason Sudeikis Jokes He Won't Marry Olivia Wilde Until 'Weed Is Legal in Every State'

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Jason Sudeikis finally answered the question that has been on everyone's mind, but his reply was definitely not one we ever saw coming.

The former Saturday Night Live star was recently a guest on Watch What Happens Live with Andy Cohen, and things took a hilarious turn when a fan called into the show and asked him when he plans to marry his fiancée, Olivia Wilde.

WATCH: Olivia Wilde Says She Won the 'Life Lottery' With Son Otis

"I know this isn't my mom because my mom's in the audience," Sudeikis, 40, joked.

Cohen chimed in and noted that everyone is very concerned about this, seeing as the two have been engaged since January 2013. Sudeikis started dating the 32-year-old Vinyl actress in December 2011, and the couple welcomed their first child together, a son named Otis, in April 2014.

"They shouldn't be. I feel like we are [good] in many, many ways," he revealed. "I mean, I believe we won't get married until weed is legal in every state, gosh darn it!"

PHOTOS: Olivia Wilde & Jason Sudeikis Look Madly in Love During 'Vinyl' Premiere Party

Back in February, Wilde also weighed in on why she's in no rush to say "I do."

"We are seriously connected," she told NET-A-PORTER.com's The EDIT. "Before you have a child, marriage is the ultimate commitment and promise to one another, and then once you have a child, it's like, 'Oh, we're committed and promised already.'"

ET chatted with Sudeikis at the premiere of his latest film, The Devil and the Deep Blue Sea, at the Tribeca Film Festival in New York City on Thursday, where he jokingly revealed the adorable ways he and Otis -- who turns two next Wednesday -- plan to honor Wilde on Mother's Day.

"[Otis] has got all sorts of stuff cooked up," Sudeikis said. "But he won't let me know because he doesn't know enough words yet!"

WATCH: Jason Sudeikis Jokes About His Son Otis' Big Mother's Day Plans