Blake Lively has shared a cheeky bikini photo to help promote her husband Ryan Reynolds’ new film.

The former Gossip Girl actress shared a rare photo of herself on Instagram where she donned the swimsuit and is standing on her tiptoes with her back to the camera.

“Go see @freeguymovie this weekend or you’ll be bummed,” she captioned the photo.

Image: 9honey

To add in some humour, the star included a GIF of Reynolds with a shocked expression.

After sharing the snap, Reynolds posted his own sweet message of gratitude towards his wife on social media, along with a photo of the pair smiling together.

“Free guy wouldn’t be the movie it is without @blakelively,” Reynolds captioned the picture.

“She was essential in every part of the making of this film, creatively and emotionally, and the cameo everyone is talking about was entirely her idea. #WorkWife.”

Image: Blake Lively / Instagram

Earlier this month, Reynolds and Lively appeared at the premiere of Free Guy in New York.

Pictured walking the red carpet together, Reynolds joked that it was the first time their relationship had been announced on Instagram.

“What a huge night for #FreeGuy. And what a huge night for @blakelively because this means we’re Instagram official,” he captioned several photos from the event.

“I know how important that was to her.”

Image: Blake Lively / Instagram

This article originally appeared on Over60.