AceShowbiz - Fans of "WandaVision" star Kat Dennings and her rocker fiance Andrew W.K. are convinced they are already married after sporting apparent wedding bands on their left ring fingers.

The couple went public with its romance online in early May, and revealed the musician had proposed just days later, but recently, the loved-up stars have been sharing photos on social media in which the actress is seen wearing an additional eternity ring with her engagement ring, while W.K. has been showing off a simple gold band.

The "Party Hard" hitmaker's new piece of jewellery was on display on Sunday, June 13 as he shared a snap of the two snuggling in honor of Dennings' 35th birthday. "HAPPY BIRTHDAY, @katdenningsss!!!" he captioned the shot, on which she commented, "I love you so much."

Dennings also shared the image on her Instagram profile, claiming he was the "real" gift.

Followers on both Instagram accounts were quick to weigh in on the suspected wedding bands, with one writing, "HOLD THE PHONE DID THEY GET MARRIED ALREADY [sic]?!", as another commented, "Is this your you guys are married now post [sic]???"

Representatives for the stars have yet to comment on the secret marriage speculation.

Dennings previously dated singer Josh Groban and was linked to Tom Hiddleston and Ryan Gosling.

Having been known to be private over her relationships, Dennings explained in an interview with Entertainment Tonight, "I don't share most things and it's not because I I have any secrets or anything, it's just that I have found that when I've shared very personal things, you know, like, I'm dating or whatever it is, like, it kind of feels icky."

"Just there's there's something about letting a huge amount of people into your life that, it just depends on your personality," she went on to say. "Some people have no issue and are kind of an open book and I've just learned over the years ... it doesn't feel good for me. But any detail about my personal life, I've now kept to myself just because it just doesn't feel good."