One of our favorite things about the Grey’s Anatomy cast is how close they are. Almost every day on Twitter, they’re tweeting sweet or funny things at each other, and over the weekend, Ellen Pompeo (Meredith) and Gaius Charles (Shane) took it to the next level of cute with matching vacation pictures.

Gaius kicked things off with a photo of him surfing in Pura Vida, Costa Rica, captioning it, “Surf’s up.” When he posted the pic, Ellen replied, “Looking good, G!” to which he thanked her adorably (“Thanks, E!”). But she didn’t stop there — she uploaded a pic specifically for him. “Wait for it, got something for you, too!” she wrote before posting one of her paddle boarding on vaca (captioned, “weeeeeee”). Almost twins!

After posting her photo, Gaius replied, “Saw you on that paddle board. You are workin’ it! :)” Umm, how cute are they? We’re obsessed. Considering kind of Shane saved Meredith’s life in the Season 9 finale, we’re sure they got closer, and with Gaius as a series regular in Season 10, hopefully they’ll be working together more in the future.

Check out the pics of them hitting the waves below, and then hit the comments with your favorite off-screen Grey’s Anatomy friendships!

Credit: Gaius Charles and Ellen Pompeo's Instagrams