Many people email us asking if they can come to a party on a particular weekend in the future, as they will be in London or Britain for a few days. However we only email dates to those who have registered with us.

If you are an an attractive single woman in our age range, we will send you an application form if you send us your name and address. The usual contribution level for single girls is half the couples rate. To do this go to Apply for a Party.

If things get hot, it's a good idea to put your clothes in a pile together and remember where you left them. That's the theory anyway. In reality clothes often come off here and there, even in different rooms. Big items like trousers or dresses sometimes have to be hunted down afterwards but never go missing. Underwear is harder because its less distinctive and so easily dropped (or flung) behind and beneath things. Quite apart from entering into the spirit, it's actually quite practical to leave knickers and pants off altogether for the night. We always have to throw away a haul of knickers, pants, socks and even bras after every party because at one point we had collected 29 knickers and thongs, 5 bras, even a skirt and a dress!

Probably the most visually spectacular sight is when a group of people form a kaleidoscope of writhing bodies all linked to each other with the most vivid sound effects. It really does happen! We create an arena consisting of four double beds together. The scenes that take place on it are awesome and can include up to 30 people.

The only thing that women who want fun together cannot expect to find at a Fever party is a door to retreat behind, and this goes for everyone else too. What we can guarantee is that no-one else will interfere.

This is not a moral judgement (who are we to make them?) but an utilitarian one. There is, after all, a large industry providing leisure options for men who want gay experiences.

You can make love by yourselves, without interference. This is quite common, especially among first-timers. It might have to be on the same bed as other people but the action at parties goes in waves and it is perfectly possible to have a bed or even a room to yourselves for a while.

We don't allow closed doors at our parties because we want to stop couples feeling excluded. We also want first-timers in particular to be able to see what goes on before deciding if they want to take the plunge. We foster an open, warm inclusive vibe not a competitive, cliquey one. Any foursome or group who want privacy can leave and go somewhere else together or arrange to meet up by themselves another time.

The only doors that close at Fever parties are the bathrooms. But it is against the rules to shag in the loos because it often forces others to queue to use them - and after all you can shag anywhere else in the venue.

The only exception to our doors rule is that if a venue has three or more bathrooms, one can be used for watersports and the door can be locked.

There may of course be legitimate reasons for a partner to leave early. However we do expect couples to talk through how swinging will affect their relationship thoroughly before coming to a Fever party. It lets us all down if disagreements emerge at a party and couples who row can expect to be asked to leave.

Men who have not yet experienced group sex often imagine that their ardour will be multiplied by the number of women present. It's not as simple as that. The commotion caused by being among a crowd - including other men - can be surprisingly distracting, even when he is not a centre of attention. But the potential difficulties do not end there.

By the time he gets down to performing he may have been awake for 18 hours and drinking for several; the scene may have developed in such a way that he hasn't been perked up by BJs; he may be tense from his natural zeal to give a good account of himself and impress any new partners; and then there is that killer condom moment that can stall the action in even the most private of sessions between just two people. To make things worse, some first-time men will have been looking forward to their first group scene for years, making the imagined pressures even greater.

Put like that, it's surprising anyone ever gets it up. But they do and the male partner in your relationship will. Just not every single time - it's a fact of life. How do you live with it and avoid humiliation? Surprisingly easily. Because in the context of Fever parties, it just isn't that big a deal.

First, swinging parties aren't porn films. Cocks don't have the same central importance. There are a lot of firmly heterosexual men around and consequently there's not a lot of cock waving going on. The only person who's going to pay any attention to your partner's are the women he's having a scene with. No-one else will notice or care whether he uses his cock in a scene or just his fingers and tongue.

Second, we're all adults. We all know it happens. It's happened to all the blokes and all the women have been with a guy who's had a bad night. So no-one will hold it against him.

Third, Fever women know that making an issue of it just makes the problem worse, so they'll live around it.

Fourth, lots of women would rather be ravished orally anyway and some of them never intend fuck anybody but their partner.

There are things he can do to try to avoid the problem occurring. He can drink little alcohol and be as fresh as he can by catching some kip beforehand. He can not come for longer than usual before the party. And he can also mentally prepare himself.

There is a tendency for men to regard their first group sex experience as the ultimate validation of their masculinity. Instead, they should downscale the importance of the event in their minds and look upon it as a just a potentially great evening - after all, swinging parties happen every weekend in this country. Provided his female partner enjoys herself, there will be plenty of other opportunities for him. Women can play a key role in helping their partners keep the whole thing in perspective.

If things do start to wilt, a helpful partner can administer a BJ or perform a mini-display with another girl - this is remarkably effective. Beyond this, we recommend a visit to the Clone Zone or one of the other gay sex shops in central London to buy one of the low tech stiffy-enhancers that work by making it difficult for blood to leave the area (gay shops have a much bigger variety, the latest designs and are much cheaper - and yes you are allowed to go with him).

A basic cock-ring costs only about 99p but more sophisticated stuff can cost £10. Be careful not to chose something that will pinch - straps with buckles are best avoided. He shouldn't wear it all night, just slip it on as his trousers come off. Even on good nights it can be a powerful antidote to condomitis. Some of them are also designed to help hold the condom on too.

What was it from your partner's side that led you into trying swinging? Was it swapping with another couple? Soft swinging (penetration by own partner only)? Was it multiple partners, serially or together? A threesome? Or a big orgy experience? Your mission at that party is to deliver it. Place any agenda of your own - however legitimate and agreed - firmly into second place. If your partner wants to come back there will be plenty of other opportunities. If they don't, the game is over.

The selection panel consists of three men and three women, not always the same six individuals. They take their responsibilities very seriously, passionate arguments about the merits of various couples are frequent and meetings are sometimes reconvened the following day when agreement was not possible the night before. This is because we always have too many good couples applying and not enough space to accept everyone who deserves it. So you might easily be lucky a second time if you were not at first - but give it your best shot and have some better photos taken.

If you are turned down twice, obviously it's not a good sign. Entry to Fever is fiercely competitive and the prevailing standard may be too high, even if you are an above-averagely looking couple. We suggest waiting for 2-3 parties to pass before trying again (6-12 months), to avoid the danger of any member of the selction panel feeling you are not taking the hint. Things may be different in a year and if just one person on the panel underrates you, he or she may have been rotated out by then.
If you have no luck a third time, frankly things are probably not going to change.

One comment we occasionally get from new couples is that they wish there was somewhere more private for them to go with another couple once they are feeling horny (at Fever everyone can go everywhere to look or play at all times). It's not possible for practical reasons - we are restricted by the size and shape of the house or flat we are using and it would never be possible to provide enough bolt-holes for the 50 couples who party at Fever anyway.

Even if one or two private areas were feasible, the Fever ethic is open and inclusive. First-timers benefit most from this as they can see what happens and who is doing it (and get turned on by the sight) before deciding whether to give it a go. Private areas would be quickly occupied by regular swingers and newcomers would be excluded even from a view of the action. Couples who want privacy can go back to their home or hotel together or meet up again another day.

ANY TIPS ON HOW TO GET ON WITH PEOPLE?

We recommend cutting anything you have a very strong opinion on out of your conversation, such as politics, religion or even football. It is fatal to assume people will see things the same way as you do and you can easily be offended or, worse, cause offence. If such a topic does come up and you feel an argument brewing, you must make light of it. Fever does not invite back people who are asperative or argumentative. Be polite and charming to everyone and guys, never ask "Are they real?" about a woman's breasts - not unless you are 100% sure they are. Breast augmentations are more common among female swingers than the general population. For women with natural breasts it can be a compliment but for women who have gone through the pain of an operation it is grating.