There is no porn of people smoking tobacco, no professional porn of people doing it *while* smoking dope, no porn of people having sex *while* eviscerating a deer, no porn of people having sex *inside* a Dr. Who time loop (that I know of), no porn of people getting in the mood by reading the Handbook of Physics (unless xkcd has done that one).
That struck me as a challenge. Therefore...
Porn of people smoking tobacco
Porn of people doing it *while* smoking dope
Porn of people having sex *while* eviscerating a deer (O.K., that's not what the picture's of. But cute, huh? Not to mention this, or of course this creepy number.)
Porn of people having sex *inside* a Dr. Who time loop (that I know of); (Can't be bothered to even try to find this one, but I'll bet it exists on some fan site)
Porn of people getting in the mood by reading the Handbook of Physics
Could anyone improve on these?

