Severus' lips curled into a snarl when he saw Potter and his gang approaching him. If he wanted to he could easily wipe those seemingly painted on arrogant smirks off their faces with nothing but a flick of his wand, but he didn't on account that he knew it would hurt Lily. For whatever reason she fancied Potter and his strutting ways.

"None of your concern," he grumbled, folding his arms across himself while leaning more against the tree.

James' smirk only grew more as he drew his wand. "None of my concern? I think it is every bit so."