Derek can't help but to smile, because she sort of reminds him of Stiles again. But it's in a good way, one that makes him feel amused and happy, instead of reminding him what he's lost. It says something about the type of people that he's drawn to, more than anything.

"Well, come on, Little Red." He turns around and heads into the trees, showing off the triskele tattooed between his shoulder blades and the strong curve of his ass. He can't help but to smirk a little, remembering how determinedly Bianca's gaze was fixed on his face. "I live back here, and don't worry. I'll even put on some pants."