I don't really see a lot of Adam discussed when it comes to wincest (not suprising but i wish)
But its funny to think that in another world, while SamDean is going on, Adam's just treated and cared for like a normal brother. That's baby brother right there and legit nothing more.
Actually something more, cuz he could also be their pseudo child had they met earlier in life or if they had just some more time maybe. They would have tried to raise him normally but their weirdness is too strong and they take up the mom and dad roles too well.
The three would have some weird ass mom, dad, son dynamic









