Taylor Swift and Travis Kelce ain't brothers ... but, they certainly brought the love to Philadelphia -- and, their fans can now breathe a sigh of relief.
The two stepped out in the city together on Sunday ... and, someone snapped a pic of them hanging out inside a restaurant.
Check out the photos ... Taylor's flashing a big grin while walking through the place while her man follows along behind her -- looking a bit more stoic.
It's their first public appearance together in months .