Nik Bonitto not only sacks quarterbacks, he provides fashion advice. The Broncos outside linebacker partnered Wednesday night with Boys & Girls Clubs of Metro Denver and JCPenney for a dozen teens from clubs for a shopping spree to celebrate their high school graduation. Each one got a $250 gift certificate for clothing at JCPenney at Park Meadows Mall. Bonitto walked around the store with the kids. He pointed to one sweater he recommended and said, “That’s fire.” When a boy was looking at a red shirt, he provided his approval. “Just kind of rewarding the kids,’’ said Bonitto, who showed up at the store to surprise them. “Obviously, graduation is a big deal. … I just kind of wanted to show my gratitude to them by coming here and being able to help with the graduation clothes.” Showing up to provide support for Bonitto was Broncos outside linebacker Jonathon Cooper, his good friend. Cooper also provided some fashion advice to the shoppers.…