Taylor Swift dresses up in Ryan Reynolds' official Deadpool costume for Halloween

Taylor Swift took full advantage of her famous friends by borrowing Ryan Reynolds' Deadpool costume for Halloween.

The Shake It Off star counts Ryan and his actress wife Blake Lively as close pals, and decided to call on the actor to help her dress to impress for the spooky occasion on Monday (31Oct16).

Ryan was clearly more than happy to help out, lending her his black and red anti-hero suit from his comic book movie adaptation released earlier this year (16).

Sharing a snap of herself in the ensemble on Instagram, Taylor wrote: "Thanks Vancity Reynolds for this costume, you're the BEST Deadpool inside contact ever."

Blake was quick to comment on Taylor's Halloween look, commenting on one of her snaps: "#HusbandUpgrade."

Taylor opted for the Deadpool ensemble as she hosted a party for Halloween, where celebrity guests included Gigi Hadid and Camila Cabello.

A group shot showed Gigi dressed as a Cub Scout, Camila as a grandmother searching for her cat, Lily Donaldson as a space cadet, Martha Hunt as The Brady Bunch's Marcia Brady, Emmie Gundler as a black swan and Kennedy Raye as a cat.

One person who isn't believed to have attended the bash is Taylor's friend Drake. The musicians sparked dating rumours when they were seen apparently "flirting" at Drake's recent birthday party, but Taylor was also absent from the rapper's Virginia Black Halloween party on Sunday (30Oct16).

Now a source has told the New York Post's gossip column Page Six that the reason Taylor and Drake have been spending time together is because they are working on music together.

“They’ve been in the studio collaborating,” a source told the outlet.

If Taylor and Drake had become an item, it wouldn't be the first celebrity relationship for either party. Taylor counts Harry Styles, Jake Gyllenhaal, Calvin Harris and Tom Hiddleston among her exes, while Drake's most famous romance is his on-off one with close friend and frequent collaborator Rihanna.