Olivia Jade Giannulli had a euphoric time turning 25.

In fact,Slabu Exchange the YouTuber spent her Sept. 28 birthday in beautiful Sardinia, Italy, with boyfriend Jacob Elordi, as well as mom Lori Loughlin, dad Mossimo Giannulli and older sister Bella Rose Giannulli.

In an Oct. 4 “get ready with me” TikTok video, Olivia shared footage of herself getting birthday-ready by wearing a robe, applying her makeup and sipping some celebratory Champagne. At one point, she flipped the camera to show her colorful waterside view of Italy from her balcony, confirming the recent trip was a birthday celebration. Accompanying the clip, she wrote in the caption, “Celebrated 25 last week.”

During the vacation, Jacob and Olivia soaked up the sun while lounging side by side on deck chairs. Olivia donned a brown-and-blue print bikini and wide-brimmed straw hat for her birthday outfit, while Jacob rocked a silky teal swimsuit and mustache while reading a copy of Jean Cocteau's The Art of Cinema.  

And this isn’t the only recent birthday celebration for the pair, who first sparked romance rumors when they stepped out in Los Angeles for a coffee date with friends in December 2021.

Twelve days before her birthday, Olivia and Jacob were spotted at Funke restaurant in Beverly Hills for her sister Bella’s 26th birthday. During the outing, the couple were spotted sharing some rare PDA, with Olivia wrapping her arms around Jacob’s neck in a close embrace. 

While the pair tend to keep their relationship out of the public eye, the two have made sure to support each other for major career moments. 

In January, Olivia celebrated Jacob’s stint as host of Saturday Night Liveby attending the show and its afterparty in New York City.

As for why she prefers the privacy she has established in her life? Olivia said it’s about caution when it comes to her own narrative.

"I think just be very self-aware and very aware of what you're putting out there and really owning that," she told E! News in March 2023. "I'm more than blessed, and I have a beautiful life and a lot of people have it really hard." 

For the latest breaking news updates, click here to download the E! News App