In the sweetest photo dump of the century, the Chiefs tight end updated his 6.6 million followers that he'd "had some adventures this offseason." Outfits coordinating with Taylor Swift were integral to many of them.

Travis Kelce’s Taylor Swift photo dump was more than just his way of making their romance Instagram-official — according to a source, it was also proof that he’s “serious” about the “Love Story” songstress.

Travis Kelce and Taylor Swift are in a 'really solid place,' an exclusive source confirmed with PEOPLE, adding that the NFL tight end posted a string of photos with Swift to Instagram this week to show 'how serious things have become.