Now, it's important to note that Jacob wasn't the only one on the birthday trip — her stylist and friend Law Roach and Darnell Appling were also in attendance.
But this isn't the first time the pair have spent time together outside work, with Zendaya recently sharing an IG story of Jacob cuddling with her dog.
While she hasn't officially confirmed or denied her relationship with her Aussie co-star, she spilled some of the details of her Greece trip to E! News at the launch party for the new fragrance, Idôle by Lancôme.
"I went on vacation with my family, which was very sweet," she said. "It was kind of just my first time just chilling, you know, I haven't chilled in a really long time."
We don't know about you, but we wouldn't invite just any old 'friend' along on holidays with our family...let alone a co-worker! Just sayin...
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