My memory of the story isn't great, so I apologize for the vague descriptions
It was really well written story, essentially of a mother and son, both adult-aged, snowed in at a hotel. Of course they have to share a bed (it was, presumably, the only room left), and things escalate from there. Now, this probably covers about 10,000 stories here on lush alone, but there are a few other random details that stuck in my mind. It's written from the perspective of the son. The son recently received a promotion at work. I know he compared his mother's breasts to his ex's - he explicitly considers that he's always preferred smaller breasts; his mother's are large.
Ugh! And that's about all I've got!
I know it was well written (I thought it may have even been an editor's pick, but it doesn't seem to be), and fairly lengthy, so I'm hoping it might stick out in someone's mind?
Thanks!