Hawn and Russell first fell for each other 34 years ago while making the movie Swing Shift
The actress took to Instagram on Wednesday to confess that she’s been “two-timing” her longtime partner while visiting Russell on set.
In the shot, Hawn is seen sitting down as a large dog crawls onto her lap.
“Two-timing Kurt on the set of his movie,” she joked in the caption of the photo.
Russell is currently filming a Christmas-themed movie in Toronto. The actor is set to play Santa Claus in the upcoming untitled Netflix film.
Hawn and Russell first fell for each other 34 years ago while making the movie Swing Shift, marking the beginning of one of Hollywood’s most enduring love stories. Since then, Hawn says she has learned the secrets to a long-lasting relationship.
“Love, gratitude, compassion, because sometimes every man or every woman will drive their partner crazy. Family. Fun. Laughs. Sex,” Hawn told PEOPLE in May 2017. “If you don’t nurture that, and remember, you’re done.”
Earlier this month, Hawn celebrated Russell’s 67th birthday with a sweet message.
“Happy birthday baby! Your light still tickles my nose. Lucky me!” Hawn wrote alongside a cuddly picture of the two.
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Today, Hawn and Russell, happily unmarried, spend most of their time at home with their blended family, which includes kids Oliver, 41, Kate, 38, Boston, 38, and Wyatt, 31, along with their five grandchildren.
The couple even received side-by-side stars on the Hollywood Walk of Fame last year.