As a life-long shoe fetishist, I have perfected my masturbatory techniques for years. I am married, but my wife is unaware of my sexual interest in shoes.
My favorite 'quickie' method is to use a pair of her shoes, preferably closed-toed pumps or heeled loafers. I bury my face in one shoe and my penis in its mate and masturbate using the latter while I inhale the rich leathery smells of the former. I usually lick my semen out of the shoe when I've finished and this often gets me so excited I'm ready again!
When time and privacy allows, I get more elaborate, dressing in thigh-high nylons and a pair of Nine West 4-inch heeled pumps from my 'stash' before selecting a pair of wife's shoes to use as outlined above. Sometime, when I feel very naughty, I will insert her vibrator in my anus as an extra treat.
Have fantasized about sharing this routine with another like-minded man, but don't dare to make the fantasy come true.