Wow, I utterly fail at reading comprehension today. I totally didn't parse those threes at all, sorry. Let's try that again.
3 - Slash Pairings: Snape/Filch, Snape/Aberforth Dumbledore, Snape/Slughorn. Themes or Scenario's? Time Period?: I have a particular love for Snape's pre-Harry days of teaching. 3 - Het Pairings: Snape/McGonagall, Snape/McGonagall/Dumbledore, Snape/Narcissa. Themes or Scenario's? Time Period?: For the first two, Snape's early days of teaching, maybe with virgin!Snape? For the third, maybe something set in his late school days or just after leaving Hogwarts? Likewise, first times are always appreciated. 3 - Gen themes or scenario's?: I'd love to see a realistic look at Snape's pre-Hogwarts childhood, especially early encounters with the wizarding world. Alternately, maybe something about his relationship with his parents as a youth/adult, or a story taking place after his death in DH.