"So how was my dear husband, this time?" I asked my best friend Irena.

"Fucking great!" she answered. "In every sense! How did you enjoy my husband?"

"Bloody marvellous!" I said. "As always, of course."

I'm Nisha and Irena is my best friend. We make quite a contrast. I am a typical Indian girl (though I was born in England and my parents were born in Uganda) with long black hair and quite slender. I think my nose is too big, but Irene and my husband Mike both disagree. By contrast Irena's parents are Polish and she is blonde and curvy in a Marilyn Monroe way. I envy her beautiful big boobs. She thinks her bum is too big, but everyone else thinks it is lovely, and Mike enjoys the sight of her going away as much as coming towards him.

I don't have to worry about him being unfaithful, though, because he fucks Irena about once a week by mutual consent, and I get the use of Irena's husband Tom for a night. The reason is that Mike and Tom were best friends in school (and in the same year as me, which led to Mike being my boyfriend and eventually husband) and so all four of us went on holiday together. There we found out that Mike has a bigger than average cock, while Tom is an excellent performer in the art of cunnilingus, and agreed a husband swap for a night.

Apparently Mike's size was well known at school but not by me. I only found out about fucking the day after my eighteenth birthday. Dad always said it was important to wait until marriage, but Mum said eighteen was quite old enough and left us alone for the afternoon with some contraceptives. Dad was at the India-England cricket match. My Dad likes to put on a bit of colonial English, saying things like 'bloody marvellous' and 'jolly good' so I do a bit as well as my friends know. He would be really happy shouting "Jolly well bowled" and "Bloody good catch" and supporting both teams. Still, I think I had a better afternoon.

It was a bit difficult and painful the first time, but that's what I was expecting. I thought all cocks were like that, but of course got used to it with practice! Mike and I were really quite innocent. We had never had sex with anyone else till recently. He was a bit shy, which I liked since so many boys were pushy. I went out with Tom a few times - he was viewed as a catch for any girl, big and handsome and a sports player. I liked him a lot, but we never really clicked in the way that I did with Mike.

Tom was best man at our wedding, and Mike was best man at his, which is when I began to know Irena, and I like her a lot. She was the one who told me that Tom said Mike's cock was big, and she really fancied trying it. On the other hand, she said Tom regularly licked her to multiple orgasms, and we negotiated a swap. This proved very successful for all four people. We are totally happy with our respective spouses but do enjoy the change, and I think we are even best friends.

One of the advantages of Tom's smaller organ is that it is much easier to suck, so we often just have oral sex with each other, though he does fuck me (and very nicely) most weeks. Once the boys agreed to hold off for a few days so that Irena could get a big load from Mike, and I could enjoy a full mouthful. Apparently Irena hoped Mike would do what is called a creampie and lick his sperm from her, but he is not that keen on giving oral sex at any time. (To be fair, he rarely gets it, being so big as to be uncomfortable for me.) However, Tom said he would do that to me next time and he did. It was quite an orgy to be licked to a couple of orgasms, fucked to another and then licked to one more. We don't know how he does it but both girls feel lucky that he does!

Then Irena asked me something I wasn't expecting.

"You like Tom licking and fucking you, and you like sucking his cock, don't you?" she asked.

"Yes to all three," I answered. "They're all jolly nice."

"Well, have you tried him up the bum yet?"

I was shocked. "Of course not! Why would I do such a thing?"

"Lots of women like it. I certainly do. I couldn't imagine taking Mike's dong, but Tom is just right. I think you should try it at least once." I said nothing. She looked as if she was hesitating.

"The thing is," she began, "I would like to try double penetration. Mike in my cunt and Tom in my arse. Would you let me if the boys agree?" I didn't know what to say, but burst into tears, I don't know why.

On the next swap day I said I would prefer not to visit Tom this time, but would go out for the evening so Mike could enjoy Irena as usual. I went to see a film I didn't enjoy.

When I got back he was sitting in front of the TV. "Did you have a jolly nice fuck?" I asked brightly.

"Of course not," he answered, looking glum. "She never came round. We wouldn't do that. I love you, and Irena and Tom are our best friends. I spoke to them on the phone, and they said we can stop swapping if it upsets you. Irena's really heartbroken that she hurt you."

I was confused. I was upset, but no-one had really done anything wrong. Irena had just told me what she fancied. If they did, I wouldn't be involved and they wouldn't do it if I didn't want them too.

"I'm sorry," I said. "The idea seemed so disgusting, and with you involved it sounded too bloody pervy!" And I cried.

And he hugged me and took me upstairs and undressed me and tried to give me oral sex. I was so touched. He tried so hard, he really did, but was nothing like Tom. He hadn't given me the chance to wash so I thought I must be stinky (though I had showered a few hours before). I was so touched I pretended I was enjoying it. After a while, I actually was, and was no longer in tears.

But then he stopped. "I can't manage any more!" he gasped, and then he was crying, and I was hugging him and saying "there, there".

"Darling," I whispered, "all I want in the world now is your great big beautiful cock. Let me kiss it then make love to me." I went down and took his knob in my mouth. With sucking and massaging with my hand it was soon rising to choke me, but I carried on for a bit, before saying "Now give your wife a bloody good fucking!" Which he did.

In the morning I got a text from Irena saying please, please, please would me and Mike come to dinner with them that evening, 7.30 for 8. I guessed it was to patch things up so of course agreed.

Irena often does traditional Polish food, so we had a delicious soup and meat and dumplings. (I'm afraid I'm not much of a cook, so the only time we have Indian food is in a restaurant or takeaway. My Mum doesn't do Indian either but is very proud of her Yorkshire puddings.) We praised the food and talked about other things, until it was time for coffee and the real business.

"I'm sorry," I began, and so did Irena at almost the same second! After a bit of hesitation, she went first.

"I'm so sorry I upset you. I didn't mean to, I..."

"No, no," I interrupted (unusual for me) "I'm sorry I over-reacted. There's no reason why you shouldn't have both the boys in the way you suggest. Mike wouldn't be doing anything he hasn't done before, and I wouldn't be there, so please go ahead. I'm just not going to do anything like that, and I would rather not discuss it."

Irena came over and hugged and kissed me. "Oh Nisha," she said. "I do love you, and you are a jolly good sport!"

"Now that's settled, are we going on holiday together again? If we are, we should book soon. I've got some brochures and some suggestions."

So what would have been the next husband swap day, Mike went round to Irena, but Tom did not come to me, and I settled down to a quiet night in. So it was a surprise when I heard the doorbell, and there was Tom.

I said I wasn't expecting to see him, and he said "Why not? I've done the deed, now I'm yours for the rest of the night. I've been looking forward to it."

"You've done it?" I said, rather unnecessarily.

"Of course. It doesn't take that long. I've shot my load, so I've come to have fun with you!"

"I'm not sucking you!" I exclaimed.

"I didn't expect you to, although I wore a rubber. Now am I going to get that gorgeous pussy in my face or not?"

"Since you put it that way..." and he took me in his strong arms and covered my mouth with his. He really is a great kisser both up and down. Perhaps he was trying extra hard, or perhaps we both were, because it was one of the best experiences of my life. He brought me to orgasm quite quickly, which I expected, but then somehow it continued, I suppose lots of little ones running together. I don't know how he did it, only that I was delirious with pleasure for what seemed a long time. When he finally stopped, I lay back exhausted just relishing the feeling. As I finally became more conscious, I did what I said I wouldn't: going down to suck his cock in gratitude. That took some time, but I was rewarded by a nice coming in my mouth and felt a great sense of satisfaction.

So we came to a new arrangement. Irena really liked her double penetration, and they did it again quite often, but not every week. I still got Tom's full attention on those occasions, and Mike the rest of the time.

Birthdays of course meant an obvious present. The boys got to fuck both of us, and the girls got both men for their pleasure. Irena was happy to have two men at once, but I refused to be with more than one man at a time, or even in the same room. Of course it was Tom who licked my pussy and fucked me first. Then he left and I spent the night with Mike, which is what I mainly wanted on my birthday. I would have been happy with just him, but did the double mainly to please the others.

(It was very nice, of course, but Mike was my love. I was also a bit jealous of him enjoying another woman on his birthday, which I would have preferred kept just for me. I think next year I will tell them.)

I know Mike would have liked to sleep with two women, and I suspect Tom would too, but it wasn't going to happen if one of them was me.

On our joint holiday, Irena made a proposal. "Why don't we husband swap for the first week, and see how it is coming back to our spouses?" The boys were enthusiastic. I was less sure, but agreed.

So my holiday started with a week of multiple orgasms every night, which I have to say was bloody fantastic! A fair amount of fucking, and fingers, but mostly that marvellous mouth. I also got some appreciation. Tom said how lithe my body was and how beautifully I responded. He said he loved Irena of course, but he really liked me and enjoyed me a lot, which was nice to hear.

I also got a new pleasure, sharing a shower with a big athletic man. When we had been swapping for a single night I had always gone in full warpaint, kept some on overnight and hurried to the bathroom in the morning so that he would not see me (or at least my face) as nature intended. However, when together for several nights I relented, and I have to say it was jolly good to feel and to soap his big muscly body.

I felt slightly guilty in comparing Mike unfavourably to Tom, but then reflected that my husband would be sharing a shower with Marilyn Monroe, very probably with no guilt at all.

Tom also liked to put suncream on my body, and moisturizer after a shower (though he used quite a lot) saying I was especially nice to feel in this way. (I didn't mention this to Irena.)

During the week I had not done anything with Mike beyond some kissing and cuddling, so on the night in question, I was looking forward with great love to reuniting with him. But it wasn't quite what I expected.

Bloody Hell! He was huge! Having got used to Tom, I was surprised how much I was stretched. No wonder Irena appreciated it! And I appreciated it after all these years, and told him so, which he was pleased to hear. Irena told me that she realised what a treasure she had, having been without Tom's magic mouth. She said Mike had certainly given her a jolly good fucking every night, but having got used to it, she thought she would appreciate it more if it was less often. Mike said that Irena was really great for a change, but it was better to have me in bed most nights.

We had one last swap at the end of the holiday to confirm our opinions. Yes, our own spouses were the best, but an occasional change was nice. Bloody lovely, in fact.