Debby Ryan is expecting.

The Disney Channel star, best known for playing a frazzled but fun-loving nanny on "Jessie," announced her pregnancy on Instagram Sunday, Sept. 7. In a joint post with husband and Twenty-One Pilots drummer Josh Dun, Ryan, 32, showed off her baby bump.

"Dun&dun +one" the pair captioned the post. The series of photos sees Ryan showing off her belly in a white drawstring top, alongside a smitten Dun, who is holding up a pair of baby-sized checkered Vans sneakers. The pair also shared a shot of the sonogram.

The duo's famous friends flooded the comment section with congratulations.

"Eeeeeeee yayyyyyyyyy congratulations!!!" Lily Collins wrote in one comment, while Adam Devine wrote: "Hooray! Congrats you too (sic)!!! Can't wait to meet the lil one!"

"AHHHH IS IT MINE???? ( just joshin ya @joshuadun )" fellow teen star Sarah Hyland joked in a comment (she and Dun are close pals). Hayley Kioko, another Disney star, added her congratulations, writing: "so happy for you guys!!!"

Ryan and Dun, who have been linked since 2013, wed in 2019 in a ceremony kept closely under wraps. Later, confirming their nuptials to Vogue, the couple revealed they planned the affair in 28 days.

"The ceremony was the perfect balance," Dunn told the outlet. "I felt like it was game night at our house, and this was the ultimate game, and boy did I win! I remember every detail from how it felt to be walking down the aisle, to the full-body chills I got watching Debby walk down toward me."

This article originally appeared on USA TODAY: Disney alum Debby Ryan is pregnant, expecting child with Twenty-One Pilots' Josh Dun

Reporting by Anna Kaufman, USA TODAY / USA TODAY

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