It all started with a final strike, or Penny's blatant disregard to follow the rules. [ Dark, Smutty, Seriously rated M Shenny. ]

Newly single Sheldon finds himself plagued by urges that were never there before and he discovers an unconventional way to cope. It isn't long before Penny finds herself along for the ride. *Rated M for sexual content and Dark Sheldon. If you can't handle the heat, get out of the kitchen*

With no explanation for how or why, Dean and Sam find themselves with a fallen angel on their hands.