Oh sure, Ella did have an apron, but it wasn't from Kevin was it? And you can be sure that later on she's going to rub that in her step-sisters face.

Kevin's reaction was not what she was expecting at all. That never happened before. Ever. There's an awkward moment of silence as she stares at the teen, then cleared her throat at around the same time, "S- Sure, all right.."

She set the apron over a nearby chair, seeing no reason to change out of her own, then turned back to her 'teacher'. SHEESH.