A dirty dozen years ago I (M, then late 40s) was flirting by explicit emails with a slim, blonde cutie nudging 40 who worked in the same office block.

It all started off, sure enough, by chatting in the office, in the lifts, at the water cooler, occasionally even meeting up in the staff smoking zone outside the high-rise, even though I did not smoke but she did at the time. I thought she was smokin' hot, so any excuse.

So we had been giving eachother the eye, politely, for a year or more. Turns out her marriage was on the skids. She had secret sexual cravings, and hubby was ''boring''.I admit I too was looking for something new and sizzling, even though I was divorced but living with a lady at the time, and it wasn't going well. Myself and Frustrated Wife were, essentially, shameless cheats. But then, we both had been discreetly unfaithful all our adult lives, it emerged.

We would often chat about how monogamy was BS.Before it eventually did progress to lunchtime fucking in nearby downtown sex cinemas , hotel rooms and parking garages in the back seat of my station wagon (yep, but that's another story), the emails were getting really steamy. I mean....porn crazy.

We used Yahoo and Gmail, not the work system, a small concession to security but of course we were aware that work IT sleuths could prob retrieve what we wrote as it was on work PCs, we we didn't care....

Anyway, I quickly caved in to her email hungers and perversity and for a few weeks, we warmed up for the actual sex by doing this. Her idea, I'll have you know.

She would put on a pair of my fave style of panties - white, boy-leg, fairly plain - before leaving with her husband for the drive to the city for work. Once at work, she would have regular bathroom breaks in the mornng and lunchtime, and finger herself, making her pussy nice and wet, and push the gusset of her panties into her cunt, and smear her juices on the outside of her panties too.

She would email to tell me: ''I can smell my cunt sitting at the desk here, hope nobody near me can!''

At a pre-arranged time, she would head to the bathroom one more time, remove her panties, put them in a zip-loc plastic bag to seal in the aromas and flavour, then pop the plastic bag into a drab brown internal mail envelope, the kind all big corporations have.

Then when she knew there would not be a mail collection for a couple of hours, she would drop the envelope in the internal mail OUT tray on her floor a couple below my floor and email me: ''My panties are ready for collection. Do your thing, dirty man!''

I would rush down to the mail baskets near her floor's lift lobby, collect the envelope and head into the nearest men's bathroom.

In Trap 4, waiting for another worker to leave the john if need be, I would in gleeful solitude open the internal mail envelope, break the zip-loc seal and pull out her damp used panties and just sit there and inhale her flavours. Fuck it made me DRIP.

But Operation Jizz had to be completed, so..... I would stroke my cock, think about her wet cunt and her soft slutty mouth on my meat and ejaculate very heavily within 2min on to her already moist underwear. I am a big cummer.....her used panties were pouring gasoline on my fire.

I would press and knead my semen into the cotton, folding and unfolding and refolding her knickers every which way so they were entirely sticky all over, fully coated.I would then return the soaking panties to the zip-loc bag, seal it, and slip it back inside the internal mail envelope.

I would then leave the bathroom and stroll back to the mail area and just like her discreetly place the envelope back in the same OUT tray.

Back at my desk, I would email her: ''You have internal mail. Enjoy!''

Then SHE would return to the OUT tray and head back to the women's bathroom carrying the internal mail envelope once again.

As she would tell me by email and in person the next day, she would lock herself in a cubicle, unwrap her panties, lick and sniff and suck as much cum as she could taste off the fabric, then put the panties back on and return to her desk.Next email from her would always read something like: ''Your cum smells and tastes delicious. It is lingering on my tongue and now pressing on my cunt lips, I'm leaking my juice onto your jizz in my panties and I love it!''

Best bit was*****, she would go home in the car with hubby, with my cum all over her knickers 2ft from his disinterested cock. That really turned her on.

Week after week that would happen, until the direct deposits began.....and then when we started fucking she would take my load in her hole, enjoy the sensation of a sticky, dripping cunt all afternoon at her desk, and sometimes still be leaking a bit at 5pm when she and hubby knocked off and he would drive her home.

She would always tell me she would be drenched by the time they got home, and would sneak off to her own bathroom for a quick orgasm after first a check of the finger-lickin' tasty goodness of the goo between her legs.

****Sorry, my bad. Best bit was actually..... we each got single within 2yrs of the first time this happened, and got together properly and publicly shortly after that. We have been a loving, filthy, happy ENM couple for 10 years now. And that is not a lie either.