[quote=@Helter Skelter]
There is no technicality involved, going by genetics all AGs are half relatives. Their having the same mother is connection enough and I can imagine there might be a couple of pairs of full blood siblings if you take into account the possibility of some men being more virile than others.
[/quote]

Yep, I was thinking of full blood siblings too. And I was just playing with the idea that the female and male of the same number are full blood siblings. Just a random idea.