Mary's Good Sons

Fill for SPN Kink Meme:

AU in which Mary lives, and in which she is really close to her children. Sam and Dean love their mom, and they fuck her behind their father's back, giving her what she needs, what John doesn't or can't give her anymore.

Both Sam and Dean are married with kids but they both visit her all the time, by themselves or together.

Bonus points: Mary really likes when Dean fucks her, because he's a great lay, no point lying about it, but she really likes it better with Sam because Sam will fuck her rough and use her and talk dirty to her, and that's what she really wants.