Things are getting serious for Mila Kunis and Ashton Kutcher.

After months of denying rumors the former "That '70s Show" co-stars were an item, photographic proof of the couple kissing confirmed what we knew all along, and now their relationship is heating up even more.

Page Six reports that Kutcher "whisked" Kunis away on a romantic vacation to Bali, where they are staying at a five-star resort on the southern peninsula. There, the couple are surely enjoying "wooden four-poster beds, a sunken indoor bathtub and ultra-private pools," reports the paper.

For months the couple claimed they were "just friends," in part perhaps because Kutcher is still in the middle of splitting from his wife of six years, Demi Moore.

But since the photos of the two kissing surfaced in July, they are no longer trying to hide their romance.

The pair even showed up to the wrap party for "Jobs," last week at the Los Angeles restaurant Duplex. A partygoer told People magazine that "they showed up as a couple and left as a couple." The insider source added that the couple "appeared to be lighthearted and in good spirits, and hardly left each other's side. They stayed within five feet of each other practically the entire evening. It looked like young love."

Love could indeed be blossoming, as the two have known each other for years.

“Ashton was Mila’s first kiss while on ‘That ’70s Show,' so they’ve always had a special bond. They started dating in the spring, and things have recently become more serious," a source told Page Six.

More stars who claimed they were 'just friends.'

Loading Slideshow...
  • Kristen Stewart & Rupert Sanders

    Kristen Stewart was caught cheating on boyfriend of four years, Robert Pattinson when <a href="http://www.usmagazine.com/celebrity-news/news/kristen-stewart-robert-pattinson-rupert-sanders-2012247#ixzz21aes8SYZ" target="_hplink"><em>Us Weekly</em> published photos</a> of the actress kissing her "Snow White and the Huntsman" director Rupert Sanders. The photos made the affair so hard to deny that both Stewart and Sanders made <a href="http://www.huffingtonpost.com/2012/07/25/kristen-stewart-apologizes-cheating-robert-pattinson_n_1702836.html?utm_hp_ref=celebrity" target="_hplink">public apologies after news of the scandal broke. </a>

  • Kim Kardashian & Kanye West

    First Kim Kardashian and Kanye West were spotted at a screening of "The Hunger Games" and the next morning, paparazzi caught Kim doing the <a href="http://www.huffingtonpost.com/2012/04/05/kim-kardashian-kanye-west-dating_n_1406044.html" target="_hplink">walk of shame</a> as she left Kanye's New York City apartment wearing the same clothes she was wearing the night before. After those photos made the rounds, the couple soon stopped <a href="http://www.complex.com/girls/2012/03/kim-kardashian-denies-dating-kanye-west-says-theyre-just-friends" target="_hplink">claiming they were "just friends." </a>

  • Ashton Kutcher & Mila Kunis

    Ashton Kutcher and Mila Kunis can keep telling the public they are just friend, but after the paparazzi <a href="http://www.huffingtonpost.com/2012/07/22/mila-kunis-ashton-kutcher-kissing-photo_n_1693530.html" target="_hplink">caught them kissing, their cover was totally blown. </a> We can't wait for them to try to deny their romance now.

  • Justin Bieber & Selena Gomez

    For more than a year Justin Bieber and Selena Gomez claimed they were <a href="http://www.accesshollywood.com/roll-call-selena-gomez-denies-dating-justin-bieber_article_41025" target="_hplink">just good friends</a>, but we all knew the teen mega stars were in the early stages of puppy love. In 2010, the couple was confirmed when photographers snapped <a href="http://www.tmz.com/2010/12/09/justin-bieber-selena-gomez-together-picture-photo-together/" target="_hplink">pictures of the teen stars, who were linked arm as they left an IHOP.</a>

  • Eva Longoria & Eduardo Cruz

    In February 2011, <a href="http://www.imnotobsessed.com/2011/01/05/eva-longoria-dating-penelope-cruz-little-brother/" target="_hplink">despite denying reports</a> they had become romantically involved, Eva Longoria and Eduardo Cruz, were caught in the act when photographers snapped <a href="http://www.hellomagazine.com/celebrities/201102094923/eva-longoria/eduardo-cruz/kiss-yacht-dating/" target="_hplink">photos of them kissing on a yacht. </a>

  • Robert Pattinson & Kristen Stewart

    Well this is awkward, but back in 2010, Kristen Stewart was also caught in the act -- only this time she was kissing her actual boyfriend, Robert Pattinson The "Twilight" co-stars had <a href="http://www.mtv.com/news/articles/1625290/robert-pattinson-denies-hes-dating-kristen-stewart.jhtml" target="_hplink">long denied</a> that they were romantically involved, but <a href="http://www.celebuzz.com/robert-pattinson-kristen-stewart-kissing-s238801/" target="_hplink">photos of the two kissing and hugging in Montreal</a>, where Stewart was filming "On the Road," proved what we knew all along.

  • Emma Watson & Will Adamowicz

    It was confirmed that actress Emma Watson had a new man in her life when <a href="http://www.celebuzz.com/2012-04-15/emma-watson-caught-kissing-new-boyfriend-at-coachella-music-festival-photos/" target="_hplink">she was spotted kissing Will Adamowicz</a> at Coachella in April.

  • Ryan Gosling & Eva Mendes

    In October 2011, <a href="http://www.x17online.com/celebrities/ryan_gosling/exclusive_photos_ryan_gosling_eva_mendes_kiss_car_couple_driving_101611.php" target="_hplink">photos of Ryan Gosling smooching Eva Mendes </a>gave us more proof the the two were dating. Photographers managed to nab a photo of Gosling leaning in to kiss Mendes while stopped at a red light in Hollywood. Just weeks earlier, <a href="http://www.usmagazine.com/celebrity-news/news/ryan-gosling-eva-mendes-kiss-hold-hands-at-disneyland-201169" target="_hplink">Us Weekly published photos</a> of the rumored couple holding hands at Disneyland. Ten months later neither Gosling nor Mendes will talk about their relationship, but <a href="http://www.huffingtonpost.com/2011/11/27/ryan-gosling-eva-mendes-paris-photos_n_1114879.html" target="_hplink">they aren't exactly trying to hide it either. </a>

  • Joe Jonas & Ashley Greene

    Joe Jonas and Ashley Greene had been periodically spotted together starting in July 2010, but they couldn't deny they were in a full blown relationship by the time <a href="http://www.radaronline.com/exclusives/2010/08/photos-ashley-greene-joe-jonas-caught-kissing" target="_hplink">photographers snapped photos of pair kissing in New York City, </a> one month later.

  • Ryan Seacrest & Julianne Hough

    They make a cute couple now, but back in in July 2010, Ryan Seacrest and Julianne Hough weren't quite so public about the status of their relationship. That all changed once the paparazzi finally caught the pair locking lips. Photographers were able to <a href="http://www.radaronline.com/exclusives/2010/07/exclusive-photos-thats-amore-ryan-seacrest-caught-kissing-dwts-julianne-hough" target="_hplink">nab photos of the couple enjoying some alone time on a boat</a> and later taking a stroll together along the seafront of the tiny, Italian harbor of Portofino. (Pacific Coast News)

  • Olivia Munn & Matthew Morrison

    In February 2011, rumors that "Glee" star Matthew Morrison and Oliva Munn were an item were confirmed when photographers <a href="http://www.popeater.com/2011/02/22/matthew-morrison-caught-kissing-olivia-munn/" target="_hplink">spotted them kissing inside New York's Madison Square Garden watching the Philadelphia Flyers play New York Rangers.</a> (Getty)

Also on HuffPost: