How Many Virgins Do I Need To Sacrifice To Win A Giveaway?

Maybe they aren't virgin enough.

Only one Virgin fat Lady

Read DeltaBlade's Guide to Winning on SteamGifts and do what it says. Entering more giveaways would be a good start. You've barely even started.

Also, I recommend you read the site FAQ so that you don't ask yet another question that's been asked a million times before and thereby piss off the SG community.

Man, you're doing it wrong.
Virgin humans aren't the way to go, it's gotta be a virgin goat!