Ashton Kutcher and Mila Kunis Display Affection Publicly?

Mila Kunis can no longer use the "just friends" excuse as she has been photographed kissing Ashton Kutcher over the weekend.

Formerly co-stars on "That '70's Show," Kunis and Kutcher have long combated rumors of their dating.

"No! They are not dating," said a representative for Kunis in April, according to Us Weekly. "They've been friends for years."

Meanwhile, Kunis attended a party with Kutcher Saturday in Los Angeles where onlookers said they observed public displays of affection between the two.

"They were seated on a couch on the same side of the table and Mila was running her hands through Ashton's hair," said the insider, accruing to OK! magazine.

"She had her elbow resting on his back and couldn't stop playing with his hair and rubbing his shoulders," they witness continued. "He leaned in and whispered to her and kissed her cheek."

Moreover, the alleged couple was spotted cuddling and kissing on a Los Angeles balcony. Another source close to the Kutcher and Kunis said the actors were trying to keep their relationship casual.

"They're not exclusive," said an insider, according to Us Magazine. "But they are hanging out and seeing where it's going."

Kunis further denied dating Kutcher to Elle magazine recently.

"I am totally single," said the 28-year-old actress. "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."

Kutcher's love life has been thrown into the spotlight since his split from Demi Moore late last year. The divorce sent the 49-year-old actress into a state of depression which led to a health scare earlier this year. Treated for "exhaustion," Moore remains out of the public eye even today.