The smells we like about other humans are artificial. If we meet someone and remark that they smell nice, we are always referring to the residue of some shampoo, soap, laundry detergent, hair spray, makeup or deodorant. Real men and women smell like blood and sweat.
Mokalus of Borg
PS - Shouldn't we smell naturally good to one another?
PPS - Maybe it's a cultural thing we've been trained into.