HOLY SHIT DAN/JO. I ... had never thought of that before? But now I can't stop thinking about it?

However, on the topic of Lou Alcott and crossgen incest - have you ever read the Eight Cousins books? They were always my favorite, possibly because they do canon cousinshipping which pings my sibcest kink - but the last time I read them through I got totally hung up on Rose/Uncle Alec, reading Rose as a substitution figure for her dead mother, who Alec had an unrequited Thing for back in the day. It was fucking disturbing.