Mike quirks his eye brow and asks; "Nothing if not count Anna talking about her school and grades." He asked in kind of careful tone, as he is not sure what his brother is getting at nor sure did he want talk about that what had happened moment before. He was glad things turned now normal, as he had no taboo guilt over the matter. As it kinda happen all time; cousin sleeps cousin, some sister and brothers have done it once or half-siblings done it and so forth. Of course father and daugther has strongest stigma to deal with so he cannot blame Matt being upset about it, even Mike doubted he would had taken it well if he screwed his own daugther! But he is open minded perv so he would not mind second rounds with his niece, or do it again together with Matt, but the choice is up only to him and he respects his wishes if he asks Mike keep his distance of Anna. So long they remained close friends as usual.