Yep, they're still going strong!

Sofia Richie helped ring in boyfriend Scott Disick's 35th birthday in a St. Barth's getaway this Saturday (May 26), and by the looks of the snapshots from their aquatic getaway, they're still very much smitten with one another.

"Happy Birthday babe! Thank you for being you. Love you," the 19-year-old model captioned a pic of the pair caressing in the waters. In the snap, Richie sports a black bathing suit as Disick shows off his scruffy beard.

The former Keeping Up with the Kardashians personality also commemorated his birthday celebration with an affectionate pic of him and his daughter Penelope on Instagram.

The duo has been dating for nearly a year since they confirmed their romance via Instagram with photos of them sharing a yacht and bite to eat together last September. Since then, they've been packing on the PDA everywhere they go — the couple even welcomed their first Valentine's Day this year.

While daddy Lionel Richie has openly vouched that Disick is in fact "a very nice guy," he has yet to really take his daughter's new relationship as seriously.

"She's 19. When you're 19 you know everything. Is it going to be for life? I don't know," Lionel told the Telegraph. "But for right now it's just a phase and I'm going to stand real still in the corner, get me a good drink and not make too much noise."

Despite the doubt and strangeness of the pair's age difference, it's more than evident by Sofia and Scott's Instagram feeds alone that their courtship is very much serious.