OH MY FREAKIN GOD steve-o, you have written some of the best foot fetish fantasies ever and this one is another great one to add to the list.
I loved the fact thinkin about a pervo sitting covertly behind his steering wheel in his parked car as he watches this hottie pack her groceries into her car. This scenario is encountered by many of us foot pervs on a regular basis, so it is very identifyable and real to us.
However some of us shoe worms out there would not be able to do the masterbation portion of it because they have driven up to the grocery store with their own wife and kids, so basically they have to have blue balls while shopping thru the store LOL! but you can be rest assured that those shoe worms are savin it up fer later when they can get home and have some private time in the restroom to remember her hot legs and just wack off and breath hard while they turn on the bathroom fan and flush the toilet repeatedly so the wife & kids don't hear them.
the best part of the fantasy you suggested was when you talked about approaching this woman and doing the kind thing and helping her put up her groceries. what i have found is that good deeds are usually repaid by good deeds.
even tho, it is great to offer her help in exchange for the sniffing, i would suggest that because it is the giving xmas season that we foot pervs simply approach these hot woman and help them as if we expect nothing from it.
but the kicker is to ask her very nicely after you've finished helping if she will let you smell her toes. if you have done a great job helping she might be very freaked out or confused at 1st, but when you keep nodding your head to let her know that you are serious about your request and that it was not some kind of joke, she will surely see the genuine-ness in your personality and perhaps let you indulge in the smell of her feet for the christmas season.
so for all the foot pervs out there doing these approaches to women in parking lots, lets take a little break and modify our tactics a bit over the holidays and see if they agree to the sniffing after we've helped. it would provide great facial expressions on these women and plus it sorta makes them already feel like they owe ya something and they are kinda cornered by your late request LOL
give it a shot boyz and report back how it goes!
would love to see some pics too if ya can manage, Hee hee