Note to self: Always grip the arm rest ends.

In Jeans
 

This made me laugh and is slightly reassuring that I'm not the only one, although I must say it's not quite as easy as it sounds. Personally my proportions, with slimmer legs and flatter lady garden area, make doing this tricky but I have found a particular combination of underwear and jeans that works brilliantly for me. Maybe the women in the book and your office have a body shape that makes it easier. Its just typical that the jeans are of the horrendously expensive designer variety or I'd have a wardrobe full of them, similarly the underwear is pricey and boudoir style rather than all day comfort type so I have to knowingly create the outfit before I leave the house. Strangely I can't get the same feeling from the knickers under different clothes or the jeans with different underpants. Together though, with legs crossed and carefully arranged, the excess material and well placed long zip fly that makes up the crotch seam create a firm finger with which to press the satiny type material of the underwear onto the nub of my clit. I should add that it only works for a short time after being freshly waxed or shaved down there or it gets all too complicated to arrange inconspicuously, unless very determined I have found. With everything properly in place I can, almost imperceptibly, sway my legs side to side to rub, lift my knee to increase the pressure (and turn rubbing to a flick), and even create a circular motion with the right rhythm added with rocking my pelvis. Its quite an art and I've surprised myself with how good I've become at it.

It takes some breath holding and some strong stomach muscles to fight back the involuntary spasms but I've got having private moments in public down to a tee. I generally reserve the pleasure for when I know I'm going to be going somewhere dull, sitting around for long periods, or have a train journey to make. With a "mummy porn" audio book on my iphone (quietly) and my eyes closed. Its easier to hide the facial expressions and any murmurings as sleep this way although I can sort of get away with it while reading the kindle too.

My wife has a clit piercing and used to work in an office in the city.
Its funny the mention of the heel thing, as that is exactly what she used to do. I thought maybe it was only her that did it. She used to tell me on the phone that she was doing it. As far as I'm aware she never came at her desk (I'd have to ask her), but she did used go the the toilets to finish herself off.

She was the only female in an office of about 25 guys so she got a lot of attention.

She does masturbate an unusual amount though. She told me a few times that she fingered herself if she was horny when stuck in a particularly bad Melbourne traffic jam. Sadly I never got to witness this. :(

My wife worked an office job for about ten years and at least a couple of times a week would slip into the washroom, hike up her skirt, drop her panties and masturbate to orgasm. She favoured the handicapped washroom but, when it was occupied would resort to a cubicle in the regular women's washroom. She said it was a regular part of her work week and I loved the thought of her, dressed conservatively at her desk one moment taking a call from a client and then five minutes later being just a few feet away with her legs spread and fingers deep in her wet pussy, with coworkers and clients passing by in the hallway.

I work at a university and over the winter break after classes are done some offices and buildings are still open, and we have students who are still working. Usually they are international students. In my office we have this young lady who is from India, and the first time I saw her she had on a tight white halter top, which is unusual for the Indian students, who usually dress conservatively. She's a cute petite gal. A few weeks later she was working in our office. On the last work day before the campus closed for the break, there is no one around except the few people who aren't taking vacation. A lot time the students will pull up a movie or something at the desk since there is no business. I walk by the public desk where she is sitting, and she has a hand down between her legs and her finger seems to be moving against her jeans. I come by the desk a few more times and she still seems to be doing that and when I was walking up from behind (she didn't know I was there yet) she suddenly leaned forward with her head almost on the desk. I was amazed. Later when I was talking to her she was just as friendly as normal. So, I don't know but it sure seems like she was masturbating at work.