On Tuesday morning this week I received a message from my letting agents.

The message was reminding me I had an appointment with Karen at 1 PM that afternoon.

I called the office as I had no prior notice of this, and they agreed that they had forgotten to tell me.

This was due to my complaints regarding a recent shower installation. Karen and a plumber were due to visit.

At the appointed time both Karen and the plumber arrived. Karen looked stunning in her short thigh-length summer dress and very high stilettos.

As soon as I answered the door, I was gobsmacked. Karen stood with the sun behind her which made her dress very see-through. The sun on her back gave me a clear view of her shapely legs right up to her pussy.

Karen had a very sexy haircut and was lightly made up. Her smile is infectious and I was getting an erection in my tight running shorts.

I invited the pair into the house and Karen removed her heels on this occasion.

Karen looked at my growing cock whose outline was visible and gave me a huge smile and a wink.

I followed Karen and the plumber into the en-suite and could not take my eyes off her plump calves and small wide sexy feet, which were perfectly manicured.

Karen looked so sexy strutting about barefoot on my carpets, clearly teasing me the whole time.

Between us, we discussed the installation problems. On one occasion, Karen ran off and brought my wife back with her to give her opinion. My wife was only at home at this time as she was taking a late lunch.

As Karen bounced off I could not take my eyes off her, and even the plumber commented on how sexy she looked today.

After sorting out the issues the plumber left, and then my wife left to return to work.

Karen and I were left in the en-suite, and we soon arranged a date for the alterations to take place.

As Karen left the en-suite she squeezed past me in the doorway into the master bedroom, as she passed me she grasped my cock through my shorts and gave it a nice rub.

Karen whispered in my ear, "Is this for me?"

I replied, "You bet."

Karen said, " What time is your wife due home then?"

I replied, "Not until later, she is going out with workmates tonight for dinner and drinks."

Karen replied, "I have my bikini on under the dress how about you show me your hot tub?"

"Wow, that's an offer I cannot refuse," I said.

Karen replied, "I am finished for the day so have plenty of time!"

I phoned my wife at work to confirm she would not be back until late as I did not want to get caught.

My garden is not overlooked by any of our neighbors so we have total privacy.

I left Karen in the kitchen preparing some soft drinks whilst I quickly changed into my swim shorts and grabbed some towels.

When I returned to the kitchen I found Karen ready to go in just her tiny little black bikini.

We went out to the garden where I set the hot tub up and we both climbed in.

I set it on its hottest temperature and maximum hydro-jet massage setting.

We had only been in the tub for a matter of minutes sitting opposite one another chatting when Karen removed her bra and threw it out of the tub.

At this point, all I could see was her nice cleavage due to the bubbles. That soon changed when she moved toward me and I had the first sighting of her nice firm C-cup breasts.

Karen knelt in front of me straddling my legs; her breasts were now only a matter of inches from my face.

Under the water, my cock was now fully erect and very uncomfortable in my tight shorts.

Karen changed that by yanking my shorts down and throwing them away as she had done with her bikini top.

Karen reached under the water, took my cock in her hand, and gave it a lovely massage.

I took her breasts in my hands for the first time. They were soft yet firm and a good hand full. Her nipples were long, dark, really hard, and very sensitive.

I dropped my head and took each nipple in my mouth in turn. I gave each one a long hard suck and nibble which drove her mad and almost brought her to an orgasm.

As I was sucking on her nipples she pulled her bikini pants to one side and lowered her body onto my thick fat cock.

Karen was so wet I slid right in up to my balls with ease. Women normally struggle to take my full length, but Karen had no such problem.

Karen started to ride my cock when I heard voices in our neighbor's garden. Karen was moaning and bucking around on my pole having a very early orgasm when we had to stop.

I stood up in front of Karen and pulled her head onto my cock, she just kissed my pole and said, "We have to stop, we can do this again another day."

My neighbors were very close by. Although we were hidden by the fence and high hedges I did not want to get found out. I could hear every word they said and at one point Sally my neighbor called out, "Is everything okay over there?"

I confirmed that I was just enjoying an hour in the hot tub.

We quickly pulled on our swimwear and went into the house.

Sadly, that killed the moment. Karen changed back into her dress

Karen said, "I must remember not to call on a Tuesday. I also hear you are up for a threesome in the hot tub with Abbie. It's a date."

Karen slipped on her heels, which made her calves look even shapelier if that is possible, and left.

Then she was gone with a nod and a wink.