Swelce’s love will last forever — on this man’s backside.

A “Fearless” Australian father who got a “massive” tattoo of Taylor Swift and Travis Kelce on his rear end in order to win his daughters’ tickets to the Eras Tour is happy to see the couple still going strong.

Luke Porter of Adelaide spent more than six and a half hours getting inked with the portraits of America’s most famous couple on Oct. 30, shortly after the pair made their relationship public.

“When I got the tattoo, I think they had only been dating for a week or two,” Porter, 42, told The Post.

The father of three said their PDA as Kelce’s team, the Kansas City Chiefs, advanced to the Super Bowl, is a good sign — and might give his tattoo some lasting relevance.

“Seeing the celebrations on the weekend when she was on the field, I’m thinking, ‘Maybe they will get engaged and get married,'” he said.

He won’t remove the tattoo even if they split, he said, “because it’s an awesome tattoo and I don’t mind my wife checking out my bum even though I know deep down it’s to get a glimpse of Travis Kelce.”

Porter got the ink to compete in his local radio station Mix 102.3’s contest, Parent of the Eras, which asked listeners, “How far would you go to win tickets to Taylor Swift?”

His wife, Rachel, came up with the idea for the tattoo after she tried but failed to secure the hard-to-get ducats for the couple’s three daughters — twins Ashlee and Chloe, 17, and Jemma, 13.

“I come home from work one day and everyone was crying,” recalled Porter, a tradesman at the Australian Submarine Corp. “I’m going, ‘Did someone die?’

“And they said, ‘No, we missed out on Taylor Swift tickets.'”

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When he arrived at the radio station to get tatted up, he realized he not only had no say in what the ink job would look like, but it would be much larger than he imagined.

“I was like, ”Oh my God, that is massive,'” he remembered.

A total of five parents competed, including another dad who waxed his legs, dressed as Swift, and held a sign on a busy road, and three moms: one shaved her head, another ate fish eyes, and a third held a large spider.

Listeners voted through Facebook and it came down to Porter and the bald mom.

They were invited to the studio, and Porter was announced the winner.

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Now, he’s proud of prizewinning ink.

“At work, and when I see friends of friends and they ask to see my tattoo, I’ve got no problem showing them because it’s really, really good,” he gushed.

“They love it; they think I’m crazy. But they know that I love my girls and . . . that I’d do anything for them.”

The doting dad won two tickets to Swift’s concert in Sydney on Feb. 24, as well as flights and accommodations, valued at $1,900.00 — which has created some drama as the family decides who can and can’t go.

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“At this stage, I think it might be the oldest two going,” he said. “And then my wife and my youngest daughter, we’ll just go to the concert, and then we’ll just wait outside, see if we can hear much outside the stadium.”

That could all change if the two inspirations behind his tattoo see the story.

“Hopefully if Taylor or Travis see this we might get a couple of extra tickets for my wife and daughter,” he said.

“But if not, that’s OK, I have a great story to tell people and an incredible tattoo to show for it.”