Olivia Palermo couldn't keep her hands off her brand-new fiancé, Johannes Huebl — and who could blame her? The couple was back on the beach in St. Barts [1] on Friday, showing off their engagement bliss by packing on the PDA. Johannes kept a hand on Olivia and snuck in lots of kisses on her bare back as she sunbathed, and then the pair walked down to the water to make out a bit before packing up and heading away from the beach. Olivia and her husband-to-be are clearly besotted with each other, and the socialite shared a photo of them on Instagram [2], saying, "Happy New Year to my fiancé! #cloud9 #dreaming #endlesslove."

Johannes popped the question on the New Year's Eve and announced the big news [3] with a video on Instagram, saying, "Happy New Year to everybody and this is how we celebrate it: OP said YES." While it's only been a few days since the couple got engaged, fashion insiders are already predicting what the always-stylish Olivia will wear down the aisle [4]. For the time being, though, we can probably expect a few more teeny bikinis.

Olivia Palermo and her fiancé, Johannes Huebl, shared a kiss on the beach in St. Barts.

Johannes planted a smooch on Olivia's back as she got some sun.

The couple showed steamy PDA on the sand.

Olivia showed off her bikini body.

Johannes went shirtless [5] during the couple's beach day.

Olivia and Johannes smooched by the ocean.

Johannes kissed Olivia under her hat.