And now that the surprising couple has officially confirmed their relationship status by kissing and packing on the PDA on vacation in Sardinia, the pair's close friend, Gianluca Vacchi, is speaking out about their romance, insisting the two are a perfect match with a mutual respect for each other.
The Italian entrepreneur, who has been documenting the duo's vacation on Instagram, took to the photo-sharing site to post a clip from The Wendy Williams Show, during which the 49-year-old host was discussing the topic of the twosome's relationship.
"Don't be concerned, Z and Mich have a mutual healthy influence each other and they are very cute toghether," he captioned the pic, in part.
Ya hear that, folks? It seems these two just might be the real deal!
Earlier this week, fans were shocked when steamy photos of Efron and Rodriguez surfaced, with a source telling E! News that "something changed" during the duo's two-week vacation, and that the actors went from being just friends to "inseparable."
It was later revealed that the twosome have a history of hooking up after they were introduced by a mutual friend named Mohammed Al Turki on a vacation abroad two years ago, according to a source.
"Michelle is super-cool and laid-back and Zac has always been attracted to her because of that," the source explained. "She's one of those people that everyone likes, she just gets on with all kinds of people and doesn't take the fame thing too seriously."
"Zac likes the fact that she is laid-back and he can relate to her," the insider added. "He is attracted to her great attitude. They understand one another."
The two were most recently seen dancing the night away at Billionaire Porto Cervo nightclub, where they were spotted sharing several sexy smooches in front of the packed party.