Ashton Kutcher and Mila Kunis: Are they secret sweethearts?

Ashton Kutcher and Mila Kunis, sitting behind a tree: K-I-S-S-I-N-G?

The former “That ‘70s Show” costars, rumored to be dating since April, were spotted swapping saliva (while surrounded by what appears to be shrubbery) at a party for “Jobs,” the upcoming Steve Jobs biopic starring Kutcher, Saturday in Hollywood.

A paparazzo photo shows the “Ted” actress and former Mr. Demi Moore embracing on a terrace, X17 Online reports. Did you two really think a few leaves could hide all this?

In Tinsel Town, a picture is worth a thousand rumors — and neither film star has confirmed a highly tabloid-worthy budding romance between old pals. So we can’t get too excited. Yet.

Kunis continues to adamantly deny.

“I am totally single,” she told Elle UK between cover girl poses for the August issue. “Listen, we hang out. We’ve known each other for 15 years. We have mutual friends. We’re comfortable with one another. That’s it! There’s no crazy love story, nothing more.”

RELATED:

Ashton Kutcher cast as Steve Jobs in indie biopic

Mila Kunis revealed as new face for Miss Dior handbags

Demi Moore and Ashton Kutcher: Divorce means even more rumors

Follow Danielle Paquette on Twitter @DpaquetteLA. Follow the Ministry of Gossip on Twitter @LATcelebs.

PHOTOS AND MORE:

PHOTOS: Celebrity portraits by The Times