I think Harry could be very sexy just sitting in a cardboard box, as long as Severus was with him. ;)
Now you're making me wonder what kind of fic *would* involve cardboard!box!Snarry! :D
And *this* is my favourite moment: and after a moment he removed his teeth
Old!Man!Snape! LOL! for Snape's toothless gums mashing together! (I am picturing "When I'm 64" by naggingfishwife right now. Good times, good times!^^).
The above moment made your fic stand out for me! :3