'Sports Illustrated' Swimsuit Alum Olivia Culpo Is Officially Engaged

Congratulations are in order for the happy couple!

'Sports Illustrated' Swimsuit alum Olivia Culpo and NFL star Christian McCaffrey are tying the knot!

The happy couple shared a handful of photographs from the moment they made it official, posting on Instagram an artistic, black and white photoset. The upload hinted at the proposal date, as the caption read, "♾️4.2.23♾️."

The first photo found the model standing before her about-to-be fiancé, her hands held up to her face in surprise as he knelt before her in front of what looks like a rocky cliffside.

Next, the two held hands as they walked together, McCaffrey grinning proudly as Culpo held her hand to her heart, still looking a little shell-shocked as she laughed beside him.

They embraced in the next photo, a blurry shot thrown in before the final one, which found Culpo snuggling her forehead against McCaffrey's cheek, her hand resting against his chest to show off her new jewelry.

Get a glimpse at the ring.

The pair's famous friends have already sent them well wishes. Case in point: Supermodel Gigi Hadid wrote, "YESSSSSSSS." Singer Demi Lovato also chimed in, "CONGRATULATIONS!!!! I’m so happy for you!!!."

The former cover model, 30, and the running back for the San Francisco 49ers, 26, have been dating for almost four years. According to the sweet message Culpo wrote on their third anniversary, two of their mutual friends had set them up.

"I’m so grateful for the voice inside me that told me to give love another chance," she wrote at the time, calling McCaffrey "the yin to my yang" and "the epitome of strength through humility."

No word yet on a wedding date, but we'll be waiting with bated breath to find out more. Congratulations are in order for the former Miss Universe and her beau!