Family?

[moosezami.livejournal.com]

Sam is dean's mom and Sam has to have sex with him because of Dean's an alpha, and it's a thing in the family where they mate one another. Dean calls him mom, and i think John is the dad.

Comments

Found it!

[melloskisses.livejournal.com]

It's called mama's boy. It's an anonymous fic

http://archiveofourown.org/works/1178543

Re: Found it!

[moosezami.livejournal.com]

This is the one! Thank you SO much for finding it!