Okay, so I don't remember how I got there but I found a link to a series call Continuing Education by Pet
(S/X, with D/O and sometimes X thrown in) that I found on www.dymphna.net
I had only read the first couple of fics in the series and I left the site open so I could finish reading it when I got home from work only when I clicked to go to the next fic it said the page didn't exist so I backed up and tried the next few...nothing.
I was able to get all but 2 of the fics.... Fire Drill and Student Teacher.
Does anyone have them or know where to find them now?