Many, many moons ago when my wife and I were regular "wife swappers" or should I say "swingers", there came a time when my wife had to come off the pill for medical reasons and realising the implications of continuing without some other form of contraception, I went ahead and had a vasectomy,

This was all well and good for us as after a month I was deemed as being "sperm free" and could continuing shooting my load inside her but that left us with a dilemma, how would our existing and new male swinging partners take to having to wear a condom and more importantly deprive my wife of having other men ejaculate inside her, something she enjoyed very much and something I enjoyed watching the results of, such as the smile on her face when she knew they were shooting their load in inside her, seeing their cum slowly running down the inside of her legs when she stood up and best of all when I slipped my cock in her spunk filled pussy. What a feeling that was!

So, we decided to add the need that only vasectomised men need apply to the adverts we placed in contact magazines.

This obviously reduced the amount of responses we received but we could live with that as a dozen replies a month was enough to be getting on with.

The major issue was if a chap said he was vasectomised should we take it on face value, let him fuck my wife and find out she was pregnant a month or two later, a bit of a non-starter we both thought.

We gave the issue some serious thought and although asking the guys for medical proof that they were vasectomised when they showed up at the hotel we used, followed up by my wife inspecting their balls for the scars left after the procedure, the best way forward was to check for sperm in their semen. So with this novel way of checking if a guy was telling the truth or not, we set out to choose our first "victim" or should that be guinea pig.

Jack (not his real name) showed up at the Stakis in Corby bang on time and was easily recognised by us from the photo he had sent a couple of weeks previously in response to one of our adverts.

My wife was instantly taken with him and made it pretty obvious by the way she flirted with him as we sat and chatted to him in the lounge of the hotel and it wasn't long before my wife suggested we go up to our room and continue to have a few drinks there.

Within a few minutes my wife was rubbing her hand up and down his thigh which had the desired effect, as she had soon got a good erection to start rubbing instead of his thigh. My wife is a fast worker.

Soon they were both down to their underwear with Jack already slipping two or three fingers in her already very moist pussy and my wife giving him a really good hand job, so good in fact he shot his load across the back of her hand with some spilling onto her thigh. Jack was immediately very apologetic and didn't expect what happened next.

My wife explained that although he'd said he was vasectomised in his letter in response to our advert, the only sure fire way of proving it was to examine his semen under a microscope which at that moment I pulled out of a draw in our room.

He looked dumbfounded (who'd blame him) but was quite happy for my wife to wipe some of his cum off the back of her hand and onto a slide I had passed to her.

A minute under the microscope told me he was sperm free and when I announced this fact to my wife she went down on him and started to give what I expect was the best blow job of his life with the intention of getting him hard again which didn't take long at all.

My wife stood up took her underwear off and without the need to be told Jack took his off also as beckoned him to lay flat on the bed whereupon she straddled him, grabbed hold of his cock and slowly guided it into her by now very, very wet pussy. Needless to say he responded by thrusting hard into her, giving her a taste of things to come.

She gave out a long stifled moan of ecstasy and pushed down hard onto him several times until she reached her first orgasm of the night.

I did my usual thing when watching my wife being fucked by another man, wanked myself furiously but making sure my load stayed where it was and on standby to flood her pussy as soon as the other guy had shot his load in her which eventually happened and I thoroughly enjoyed the vision of her lifting herself off his slowly deflating cock, standing up and walking towards me with the evidence of this strangers recent exertions with my wife, slowly trickling down the inside of her thighs.

Not wanting to find that most of his spunk had spilled out I pulled her to me, lifted her up onto my hips and slid my cock straight in, accompanied with the very familiar squelching sound as my cock slid yet again into her sopping wet pussy.

Now, sloppy seconds is not something you can easily explain to a man who has not experienced fucking his own wife immediately after another guy has unloaded his wad inside her, other than to say it's heaven.

That night was special after almost months of not seeing her enjoy herself with another guy not wearing a condom and it wasn't until gone 3am that Jack but not after we'd both fucked her rotten, leaving her pussy a little sore but filled to the brim with our combined loads of cum.

We did consider letting men fuck her whilst wearing a condom but she'd got so used to fucking bareback and taking a load when she was on the pill, she decided to wait for a guaranteed way for only vasectomised men to fuck her and I got a sneaky suspicion that although I had had "the snip", she was getting frustrated with just my cock inside her and let's face it, I preferred her pussy well lubricated by other guys before I slid inside her.

Boy oh boy, am I pleased that I'd hung on to the microscope from my boyhood, it opened to way to some great times again.