I dated a guy my senior year of high school who I worked with for the following two summers as a lifeguard AFTER we had broken up. He was actually my boss.
He had this intoxicating aroma that was like some kind of crazy trigger for me, and it was worse after spending the day in the sun. It wasn't bad like yucky BO but it was like this drug to me. I swear I had to keep from burying my nose in his discarded towels like some kind of crazy stalker. I could walk into the guard house when he was in there and nearly go weak in the knees just from one whiff.
When we dated, we fooled around and never "did it." He was a nice guy, a nice looking red head, but there was nothing stunningly amazing about him. However, after we broke up, it was sheer torture to be near him and, looking back, I must attribute it to the pheromones he emits which apparently just my brand. I can't explain it any other way.
In any case, I spent two summers torturing myself lifeguarding with my ex boyfriend and had to fight daily to keep from walking up to him and just licking him. That was 18 years ago and I bet I could identify him today purely by smell alone. And it would be pretty hard for me to restrain myself from jumping him.
Scent is a powerful thing for me. When I was with my first girl, I could NOT get enough of the way she smelled. In college an ex boyfriend enticed me into cheating on my current boyfriend by wearing a certain cologne he KNEW was my kryptonite. Ok, ok there MIGHT have been some Jack Daniels involved too, but I swear, it was the cologne that made me do it. Him. Do him, I mean.