Unfortunately the smelliest foot experience i have ever had was when i was...oh somewhere around the age of 10-12. My mother and I  were rough housing as well as my sister in the living room and as I tackled my  mother to the ground she stuck her feet up in the air and right upto my face.  i caught a short by potent whiff of her pubgebt feet. They really smelled bad ....i could liken it best to vinegar or something sharp or acidic to that effec t. It was exactly a pleasant experience as I had a foot fetish then as I do no w. But I am only 20 and who knows...some day there will be a foul foot smellin g lass who want me to smell her feet..Just have to keep hanging out with the G