Is Zac Efron dating his ‘Baywatch’ co-star?

Cue hearts around the world shattering.

We don’t want to alarm you, but Baywatch star Zac Efron might just be off the market...

Yep, heartbreaking, we know.

It's rumoured he's now dating his co-star, Alexandra Daddario, and with the pair sitting together at the MTV Movie and TV Awards, you can bet we’ll be watching like a hawk for any sly PDAs that might be going down at today's show.

An insider spilled about the rumoured lovers,

“Everyone is buzzing that Zac Efron and Alexandra Daddario are secretly seeing each other and have been doing so for months," they told Hollywood Life.

"They had amazing onset chemistry while filming Baywatch and have been spending time together since the movie wrapped."

They added, "She thinks he is super sexy, smart, hilarious and loved working with him. He finds her to be an amazing actress and really intelligent. Alex is a New Yorker, which attracts Zac too. He finds her to be sophisticated and more mature than most women. But after a few failed relationships, Zac isn’t rushing into anything."

Even 31-year-old Alexandra has made no secret of her attraction to blue-eyed babe Zac, previously revealing,

"I actually did [touch his abs]. The first time early on I had to do a scene where I was with him and I had to touch his waist — I wasn’t prepared and an animalistic shock went through me like this sort of I don’t know, he is like not human. He is something like Michelangelo carved. I have never seen a man like that… It’s incredible.”

Who could blame the girl, really?

And while we may be incredibly DEVO at the thought of Zac no longer being our boyfriend a single man, we're just happy knowing he's happy, y'know?