Hg as potion apprentice to ss

[Guest Anon-1981]

I recently saw this story again but can't remember the title. It's about a potion to defeat voldermort that needs a virgins blood. Enter the potions master and his apprentice.

[RogueMudblood]

I've read a few with this theme. To help narrow down the search, which one is the virgin, Snape or Hermione? (Yes, I have read ones where Snape is the virgin.)