by ArjenRoan
will we get to read about the first time they have sex? you have only told us they fucked but given no description of what they felt while doing it.
I agree with the other comment that you need to tell more about the emotional side of what happens between the brother and sister - although the sister appears to have a somewhat more clinical/political attitude to things.
However the political/religiuos aspect may anyhow possibly add an interesting layer to the story told.
Wish she was my sister.
I'd marry her and fill her with baby batter
Can't wait for the next chapter with my hard cock in my hand