Taylor Swift's Cats' 'Deadpool 2' Cameo Is Absolutely Purr-fect, Right Down To Their Real-Life Reactions — PHOTO

Mild spoilers for Deadpool 2 ahead. It should go without saying that the surprise feline cameo from Taylor Swift's cats in Deadpool 2 is absolutely purr-fect. But Swift wasn't interested in keeping quiet about how much she loved the shirt Deadpool wears featuring Meredith Grey and Olivia Benson (the cats, not the TV characters). In fact, the singer had to tell the world just how proud she was of her fur babies big-screen debut. But when telling Meredith and Olivia the news, they reacted as excited as one might expect.

On Monday, Swift took to her Instagram Story to thank her buddy Ryan Reynolds for finding a way to feature her two Scottish Folds. "I'm so proud of my fuzzy daughters," she wrote alongside a screengrab of Deadpool wearing a T-shirt with her cats' faces on it in the recently released sequel. Even better is the slogan: "Olivia and Meredith, Best Friends Purrr-ever." The shirt is certainly the cat's meow, and Swift should really starting selling them as merch on her Reputation tour.

And maybe she'll start, since it appears this shirt was a total surprise to her until now. Apparently, Reynolds is good at keeping secrets since he and his wife Blake Lively are pretty close friends with Swift. Beyond Lively previously saying she wants to marry Swift, the couple has been known to attend some of her parties. Most notably, the 2016 Fourth of July extravaganza that not only gave us Tom Hiddleston's "I heart T.S." tank top, but that meme-worthy photo of Reynolds' RBF.

TaylorSwift/Instagram Story

Reynolds later explained to People what that look of utter despair was all about and it had nothing to do with the party itself. “If I’m not aware a photo is being taken," he told the magazine in 2016, "my natural resting face is one of a man dying. I had no idea somebody was taking a photo. Therefore I was resting comfortably in my persona of a man whose soul is visibly exiting this earth.” Who among us hasn't taken a photo that we wish never ended up on the internet?

Olivia might have the same condition as Reynolds, since she looked unimpressed by her big cameo. When Swift told her on her Instagram Story about the guest spot, the cat didn't even bother to look at the camera. In fact, she makes the same face that you'll see on Deadpool's shirt, clearly, unenthused by this whole celebrity business. "She's very private," Swift joked about Olivia's response.

Taylor Swift/Instagram Story

Meredith, on the other hand, seemed quite pleased by the news. "Meredith," she said, sticking a camera in her face. "I wanted to tell you something, this is really important: Deadpool 2 put you and your sister on a shirt in the movie." Her ears perked back with the news and she began purring loud enough for Swift's phone speakers to hear.

"The purring is really next level," Swift wrote along with a video of her purring. "Meredith loves a cameo." And it's pretty hard not to love this one, which I'd like to assume was a sweet way of Reynolds thanking Swift for his daughter's cameo on her song "Gorgeous." Yes, that is Reynolds and Lively's 3-year-old little girl James on the adorable opening of the track pronouncing the title.

Meredith and Olivia aren't the only cameos in Deadpool 2. Blink and you might miss Matt Damon, who shows up as a hillbilly who encounters Cable when he travels back in time from the future and winds up in the middle of nowhere. And even with 20/20 vision you'll likely miss Brad Pitt, who appears in Deadpool 2 for mere seconds.

Taylor Swift/Instagram Story

In an interview with The Hollywood Reporter, the film's co-writer Paul Wernick said they thought it would be funny to nab Pitt for the part of Vanisher, who's normally invisible, but here, flashes briefly on screen after getting electrocuted.

"We just thought, ‘Oh my god, what a perfect idea for a celebrity cameo.’ And then we thought, ‘Who is the hardest get in Hollywood? Let’s call him,’ ” Wernick told THR. But when Reynolds called him to see if he'd be interested “he immediately said yes,” Wernick said, noting Pitt's kids are big fans. “It was a pinch-me moment.”

Maybe Swift's cat Olivia will be more impressed by Pitt's cameo than her own.