Work colleague

As bizarre as this sounds this is my last fortnight..

It all started with a harmless work function followed by a couple of drinks.
I had recently done a presentation to a broad audience including an incredibly sexy woman in her mid 30's.. i hadn't had a lot to do with her, however she seemed to ask a lot of questions and be a bit more interested than i would have thought in my rather boring content..

Anyway, about a week later we had an offsite and everyone headed out drinking after. I ran in to my colleague, we'll call her Kathy, we exchanged pleasantries and being in a bigger group kept drinking... As the night went on i felt a hand sliding along my arse and brushing mine a bit.. sure enough Kathy seemed to be moving past normal work boundaries..

As we were surrounded by colleagues i was avoiding most of her advances, still thinking i must be imagining it, however after my third shuffle away and her following i thought i might as well see what her game was.

I turned to her, at this point her generous breasts were pushing against my back, and leant in and asked what she was doing?

She whispered, isn't it obvious? i was a little surprised, but pointed out we were with her boss, my team and it probably wasn't appropriate.. to which she smiled and said so let's go outside!

I suggested i'll walk out and you follow in five minutes...
As i walked in to the street, a normal melbourne inner eastern suburb, i wondered if this typical corporate classy, sexy and apparently demure woman might be a bit of a wild cat...

Within 5 minutes Kathy came out, walked straight up the street to me, and grabbed me by the groin and kissed me.. i guided her down a side street (just off the main road) and kept kissing her.

I thought i would throw caution aside now so slid my hand up her dress, and along her slit... she was soaking. Kathy moaned and kissed me harder, whispering i want you in me!

At this point we're in a side street against a wall in a fairly busy area, i found a set of stairs and spun her around.. lifting her skirt i unzipped and pushing aside her g-string i teased her soaking slit with my cock..
I then slipped in and pushed hard, she yelled harder (at this point i noticed people glancing down the street as they walked past), given she couldn't see i obliged and slapped her arse hard and pulled out then in.... slamming my balls against her.

As i slipped a thumb in her arse she pushed back harder still, i bent over and whispered in her ear... when did your partner last fuck you? to which she moaned weeks ago in my pussy but not for years in my arse!!

BUilding up pace i felt my balls tighten, i asked Kathy where she wanted my cum... she spun around and said my face and tits.... I gladly obliged...

The next day at work i got an email asking about meeting in the stairs or meeting room for more.... but that's another tale..