I was editing my earlier request and accidently deleted the entry. Let's try again.

I'm looking for a story that is definitely post In My Time of Dying. Dean is working on the impala, on a creeper (that thing that rolls under the car) and Sam comes out and then there is h/c sex. I'm not sure if the boys even talk and I think after Dean rolls right back under the car. It might even have been called creeper!sex or something to that effect.

I've searched and searched but I can't find it. Any help would be greatly appreciated.

ETA- FOUND! pez_gurl is my hero.