Please continue this if you are still around! Absolutely loving your Draco/Snape dynamic!
Okay, I have read and reread this countless times! It's unique and incredibly hot the way you have your Snape/Draco dynamic set up. Draco is scarily sadistic, while it appears that Snape is a closet masochist. This "arrangement" seems to suit them both quite nicely (or, more accurately, not so nicely!)...Draco is openly reveling in his role of his godfather's Master, while Snape is quietly and somewhat reluctantly embracing how much he actually wants to be his godson's "pet." Given Snape's life of being controlled by two other "masters," it seems like it could make sense that he needs to be in a master/slave relationship for sexual gratification; perhaps he doesn't function well anymore without being controlled and all ability to choose is removed. Seems like a result of a lot of abuse, but he undoubtedly has a natural inclination to be submissive. It may be that the scary persona everyone else sees is all an act so that this shameful secret side of him remains hidden. Then Draco and his own twisted needs and devious plans comes along and actually unwittingly unveils Snape's hidden desires and inclinations. What an unexpected twist to their arrangement, indeed! What you've created here is a refreshingly different Snape/Draco slash story. The role-reversal adds a different level of titillating storytelling. I find it ironic that it is actually Neville's fault for leaving the password where Draco could find it and set off the domino effect that leads to his most-feared professor's life becoming the property of someone else. Draco should really reward Neville by making Snape do something for him to show his gratitude - and then, of course, oblivate him. ;) There were other characters listed and there are so many things that Draco could have his pet do for his entertainment...just how does Severus make it through the next day with a pouch, a ring, and no clothes under his robes all while going through his usual daily business? And finally, what actually happens? Does Snape decide he's had enough and actually finds a way out of this "rat trap" Draco has him in, does anyone find out, does Draco "share" his toy, do the roles reverse and finds Draco wishing he never tried to take Snape's life as his property? ...because payback can not only be a b*tch, but in this story, I can see it being a long drawn-out torture. Oh, the possibilities! This has so much potential...if you're still out there and at all inclined to continue, I implore you to do so!
anyway - i find the reversed positions of draco and severus far more intriguing than the usual draco/severus story.