Many years ago, I worked in an office with 8 women. The typist was a tall, married woman with long auburn hair. One day, after she had left work, I saw she had left her well-worn wooden sandals beneath her desk. On impulse, I took them into the toilet and held one to my nose. I got an instant erection from her foot-scent, and lost no time in bringing myself to a very intense climax.
This became a habit with other girls' footwear, I even took a pair of mules home to climax into one with the other pressed over my nose and mouth, licking and sniffing like mad. I was never caught, and still enjoy sandal/shoe fun with my partner's footwear, plus watching shopping channels, where they show close ups of the models feet in sandals.