'Yellowstone' costars Ryan Bingham and Hassie Harrison confirm romance on Instagram

Bingham posted a photo of himself sharing a kiss with Harrison.

"Yellowstone" costars Ryan Bingham and Hassie Harrison revealed their love for each other off-screen.

Bingham, 42, posted on Instagram Wednesday, a photo of himself and costar Harrison, 33, sharing a kiss in front of a huge bonfire to confirm their romance to his followers.

"More than a spark 🔥 @hassieharrison," Bingham captioned the post.

Responding in the comment, Harrison wrote, "i love you, cowboy. 🥰."

In the sweet snapshot which Harrison also reposted on her Instagram Story, the pair wore matching ensembles including blue jeans, camo jackets and rubber boots.

Fellow costar Jen Landon appeared to show her support in the comment section by simply writing, "😍😍😍😍."

"GMA" has reached out to representatives for the pair for comment.

A Grammy-winning musician, Bingham was previously married to his ex-wife Anna Axster for 12 years from 2009 to 2021. The former couple shares three children together. Meanwhile, Harrison was previously linked to "One Tree Hill" actor Austin Nichols.

In the western drama, the duo play each other's love interest. Bingham, who has been on the show since the first season, portrays the character of Walker, a musician and former convict who works at a ranch in Yellowstone.

Harrison, who is known for her role in "Tacoma FD" and "The Iron Orchard," joined the series as a cowgirl named Laramie in season 3.

"Yellowstone" is expected to return with new episodes this summer, according to Paramount Network.