What if I don't find any of those people attractive and I can't get it up? Does the situation you described provide a fluffer? It would have to be woman, a porn star preferably.
If so... well, I'll have to go review that list and see who needs a good shit-packing.
Just incase you use the "I can't get an erection at the though of fucking a man in the ass" excuse the gunman has a trained chimpanzee who is going to bite your cock and balls off if you do not get an erection in under 1 minute.