Kutcher and Kunis on Set of Two and a Half Men Together

Ashton Kutcher and Mila Kunis have been seen on the set of Two and a Half men together recently, sparking further rumors that their relationship is intensifying.

Kunis has been reported to have visited the set of the hit TV comedy show, which stars Kutcher, last Fridat Aug. 10, in Los Angeles, according to Just Jared.

According to the celebrity news website fan "Sarah Stalker" posed with the couple for a photo, and later tweeted the message: "With Mila Kunis [and Ashton Kutcher] on set of Two And A Half Men last night

The news come following other reports recently that actor Ashton Kutcher whisked Kunis away on a tropical vacation to Bali in celebration of Kunis' birthday, which is Aug. 14.

The couple was said to have stayed at a five-star resort on the island's southern peninsula which included wooden four post beds, sunken indoor bathtubs, and private pools, according to Page Six of the New York Post.

The Daily Mail posted photos last week of the couple standing on a security check line at Los Angeles County International Airport on Sunday, July 29.

Kutcher and Kunis, who have known each other for 14 years since starring together on "That 70's Show," have continued to announce that they are just friends.

Photographic proof of the couple kissing in July at a party for Kutcher's wrap-up of the biopic "Jobs," however, dispelled any doubts that the two young Hollywood successes are "just friends."

"They were seated on a couch on the same side of the table and Mila was running her hands through Ashton's hair," a source told Us Weekly about their July outing at the trendy Soho House in Los Angeles.

"She had her elbow resting on his back and couldn't stop playing with his hair and rubbing his shoulders. He leaned in and whispered to her and kissed her cheek. They were holding hands," the source added.

The new season of the hit show Two and a Half Men kicks off its 10th season at 8:30 p.m. ET on Thursday, September 27.