> If humans have got
> sex-pheromone receptors, I don't know,
Yes, humans have vomeronasal organs (organs with pheromone receptors),
which project to the accessory olfactory bulbs, just as in other
animals whose behavior is known to be affected by pheromones. In one
experiment, activation of the human vomeronasal organ with certain
chemosensory cues was shown to induce autonomic responses, which
differed between men and women. Most subjects could not consciously
smell the chemosensory cues. This is evidence suggesting that humans
respond to the presence of pheromones.
Source: Monti-Bloch L et al. The human vomeronasal system.
_Psychoneuroendocrinology_ 19(5-7): 673-686, 1994.