It's not that the sex scenes in Chapter Four aren't good, as the first scene where they have sex on top of the stairs is an extension of Chapter Three, but it's still my impression to this day that chapter excluding the scene I just mentioned may have been an attempt to ingratiate Daniel's becoming a cuckold with the audience. First it was with his getting turned on watching his mother get it on with his Dad, which by this point of the series, Daniel wouldn't even indulge, and his mentioning how the neighbors want a shot at her. Even though the art is good, the dialogue is gawd awful, which is the reason I rank it so low on my list.
"Fax" is shorthand for "facts." It's a colloquial interjection which suggests agreement.
To be fair, I started with Chapter Four. I've admitted that had I started the series with the first chapter, I may have joined in the backlash that was uncle Peter's inclusion. Maybe not as much, since I do like the Uncle-Niece pairing in incest. For example, Trophy Mom by Y3DF had a fairly vanilla mother-son pairing until it's fourth chapter (ironic, hun?) where NTR was introduced when NTR was introduced with the mother's eldest son. Even though it was still incest, I still dislike that chapter. So, I understand well those who dislike Peter and his inclusion into Madness Together. But for me, adult incestuous pairings is rather rare, so it was nice to see a niece who already has a family of her own get it on with her uncle. If I have one criticism of their encounter, it would be that he berates her in Chapter Six. I didn't like part much.