Now to another subject: Brother/Sister incest. And just about any other form of sibling, even cousin incest.
I refrain from such for a good reason, that being that it just makes me want to squirm thinking about it. It's not the whole thing that incest is a taboo in society, but it's also the moral dilemma involving offspring produced by such relationships and just thinking about how grotesque the final product from such is. I mean 'Incest' is one of the reasons abortion is offered (and we also have shitheads like Todd Akin and Richard whoever Muldoch, who tried to push banning abortion regardless, and look what happened to them? They lost, all for that and rape apologism).
For instance, there happens to be a few fans of the show Gravity Falls (which I would go watch if I could just find a few episodes of Season 1. At least pick this show up already, Netflix!) happens to follow a shipping known as "Pinecest" (Dipper/Mabel). Yes, a shipping of a twin brother and sister. Not just a "Like Brother, Like Sister" bond, an extension to romance, even sexual desire. And once again, I have to remind you all that shit like this makes me feel like really creepy things are crawling inside my skin.
Another interesting fact is that last year (October 14th, I'll never forget that date) I thought one of my favorite shippings (ChessShipping, or Hilbert(Touya)/Hilda(Touko)) was an incest shipping, causing me to freak out and abandon the ship, heartbroken. But then, I had realized that's just fanon fluff, supported by mostly non-shippers. So no, it is not an incest shipping, and it has never been proven by Word of God (Satoshi Tajiri or Ken Sugimori) that the two Trainers are related. Or any other male and female Trainer before and after them (so far).
And the fact that it's sometimes FerrisWheel and other rival Shippers who say this makes me dislike (or hate, like the FerrisWheelShipping) those rival shippings more.