Zac Efron and Michelle Rodriguez share a tender kiss aboard a yacht in Sardinia

Zac Efron and Michelle Rodriguez are not officially an item, but it seems their union is heating up.

It was this past April when reports swirled about Zac’s involvement with actress Halston Sage, but the young heartthrob didn’t seem ready to settle down. The 26-year-old Neightbors star told Access Hollywood, “I don’t know, I’m not really sure I’m in the market... I’m not investing. My money’s out!”

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But it seems his tune has changed as photos surfacing from his getaway with Michelle in Sardinia show the pair getting cozy and sharing a kiss or two aboard a yacht. An Instagram video also shows the two stars dancing.

The Fast & Furious actress had her own moment to shine as she was hoisted up the mast to enjoy a view of Sardinia – the island she has frequently called "beautiful" on Instagram.

Michelle and Zac were both invited to Sardinia by Italian businessman Gianluca Vacchi. Zac and the Italian entrepreneur, who had been spotted doing weight training earlier on in the holiday, flaunted their muscles as they did backward flips off the boat.

Sporty Michelle, who showed off her washboard abs in a black-and-white striped bikini, was on hand to capture the moment.

Michelle, 35, has been romantically linked to Vin Diesel, Colin Farrell and, most recently, supermodel Cara Delevingne, with whom Michelle enjoyed a romantic Mexican vacation in March 2014.

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