Calabasas, California - Shine bright like a diamond! Kourtney Kardashian is glowing-in-the-dark in a stunning all-white bikini set.

Apparently, the Keeping Up with the Kardashians star decided to take a late-night dip.

And when it comes to poolside fun, the Kardashians-Jenners know how to set social media ablaze!

On Wednesday night, Kourtney posted nine new snaps from her twilight swim on Instagram.

Kylie Jenner Kylie Jenner convinces "terrified" Khloé Kardashian to face fear of new piercing

The 42-year-old sported what seemed to be a light-up or glow-in-the-dark white two-piece. It was an eye-catching light in the night as she effortlessly floated in an infinity pool near the ocean.

"Life is but a dream," she wrote as the caption.

Of course, the luminescent display attracted everyone's attention – especially her boyfriend's, Travis Barker.

The Blink-182 member commented under the sultry pics, "You're my favorite."

We're swooning!

Could the Poosh owner's latest pics also be a hint that she's radiating with love from Travis? Or soaking in some bridal-white vibes?

The overly-affectionate couple have been packing on some steamy PDA since their romance first began earlier this year. They have also been sparking some serious engagement and wedding rumors lately.

Last week, Alabama Barker, the drummer's daughter, even referred to the reality-star as her "stepmom" during a game of Never Have I Ever on Instagram live.

Whether the pair are secretly engaged, or married, it's clear that the eldest Kardashian is having a positive effect on her beau's kids. Kourtney and Travis spent time with their combined families over the 4th of July weekend at Disneyland, and the group seems to be loving their time together.

There's also been talk that the musician will make an appearance on the Kardashian clans' upcoming Hulu series.

Shine on, Kourtney!