The singer and her BFF Ed Sheeran — who’s the opening act on her tour — paid a visit to Toronto’s Lucky 13 Tattoo shop recently.

Sources say Ed convinced Taylor it was high time she stopped inking her trademark “13” on her hand before every show with a Sharpie – and get it tattooed on for good, according to American tabloid the National Enquirer.

“Taylor was literally shaking in her boots,” a source said.

“She kept whining stuff like, ‘it’s going to hurt,’ and ‘what if I don’t like it, what will I do?’”

Sheeran, who’s got “RED” tattooed on his arm in honor of Swift’s hit album, kept reassuring her, “I’ll be right there holding your hand…you’re gonna LOVE it!”

Finally caving, Taylor was just about to get inked when a loud scream came from the next room.

“What was that?” she gasped.

Said the tattoo artist, “Oh, don’t worry! It’s a friend of mine getting his first tattoo – but he’s a big baby!”

Turning an even whiter shade of pale, Taylor yelled, “No way!”

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