Derek hummed at Stiles' pleading, and rubbed his arms once more before putting him at arms length. "I'll think about it," he replied, agreeably. "I could use your help. But if you're doing manual labor on the build, you might not need to run until after it's done." He lifted his hand, cupped the teenager's face and offered a small smile. "Though your reasoning behind it is...admirable," he conceded, approvingly.