[Wait, was that...? Did she just use a smiley? Why did this break his brain? Oh, because she's the scary Hale!Sister and wow... It's like Derek using smilies... or smiling. Or maybe it was just the content of the text and the thought of telling Derek a joke that really has him thrown for a loop.]
[Text]
Cora? Can Derek actually :D at all?
But I don't think I have any good jokes. Sorry.