Catches his stepmother changing clothes and gets hard

I spend many hours reading and after having analyzed all the interpretations that can be given and those she herself could give, then she is convinced that all the laws must be followed to the letter and also, take advantage that some loopholes also exist. So now she is convinced that making her son fuck her ass, should not be incest. For the offense to be committed, it is necessary for him to put his dick inside her pussy. In some cases, it requires her to get pregnant. So she is not doing anything wrong and can enjoy the anal orgasms that this gives her.