Taylor Swift subtly let slip she's the godmother of Ryan Reynolds and Blake Lively's kids while praising the new 'Deadpool' movie

• Taylor Swift shared an Instagram story to promote the new movie "Deadpool & Wolverine."
• Swift is close friends with Blake Lively and her husband, "Deadpool" star Ryan Reynolds.

Taylor Swift took a moment out of her busy Eras Tour schedule to promote "Deadpool & Wolverine" on her Instagram story — and subtly revealed a juicy nugget of personal information in the process.

Swift is close friends with Blake Lively and her husband, Ryan Reynolds, who plays Marvel's "merc with a mouth" and costars in the new movie alongside Hugh Jackman.

"Shout out to Wade Wilson, aka my godkids' sperm donor!" Swift joked in her post, using Deadpool's non-superhero name.

Lively and Reynolds share four children who are apparently lucky enough to call Swift their godmother.

Swift's friendship with their parents dates back to at least 2015, when Swift and Lively hung out during the Australia leg of the 1989 World Tour. Since then, the trio has assembled for many holiday parties and events — Fourth of July, New Year's Eve, Sunday night football — and even collaborated on musical projects. Reynolds appeared in Swift's 2019 music video for "You Need to Calm Down," while Lively made her directorial debut with "I Bet You Think About Me" in 2021.

In fact, the couple's three eldest daughters —James, 9, Inez, 7, and Betty, 4 — have all been name-dropped in Swift's lyrics.

Throughout her 2020 album "Folklore," Swift spins the tale of a "teenage love triangle," channeling her own emotions through fictional characters. The narrator of "Cardigan" is named Betty, while "Betty" is sung from the perspective of her lover James. (Swift also used a recording of James' voice to open the 2017 track "Gorgeous.") Inez is mentioned in "Betty" as one of their classmates who likes to spread rumors.

Lively and Reynolds welcomed their fourth child, Olin, in 2023.

Before the couple revealed the name of their youngest child at the "Deadpool & Wolverine" premiere, Reynolds was asked if Swift had included any clues in her latest album, "The Tortured Poets Department."

"We always wait for Taylor to tell us what the child's name is, and I'll say this: We're still waiting," he joked on the "Today" show.

(There is a song titled "Robin" on the album's extended edition, "The Anthology," which is likely named after the son of Swift's close friend and collaborator, Aaron Dessner.)

Swift originally became a godmother back in July 2015, when her friend Jaime King gave birth to her second child, Leo Thames Newman.

"She's going to be, like, the best godmother in the whole world," King said of Swift. "The best."