After winning a small fortune playing the Lottery, most winners would find it hard to resist spending a few thousand upgrading their wardrobe.

Not Brian Tucker and Margaret Dallard. They are, after all, nudists, and generally doesn't have much use for clothes.

Instead, they held a little soirée for a select group of friends at the Invicta Sun Club to celebrate their Lottery win.

It was a rather chilly evening, so Brian and Margaret took the rare step of keeping on their clothes. Many others present, however, were stark naked as they toasted the couple's £240,928 windfall with champagne.

Brian and Margaret spend most of their free time at the Invicta nudists' club near Dover. Last weekend, following their win, was no exception.

"It was quite cold, so we stayed dressed," explains Margaret, "but the more hardened naturists among us were naked. Camelot had given us some champagne glasses with the crossed fingers logo on, so we put them on the table in the pavilion with some champagne we'd brought and waited for people to guess what had happened.

"Everyone was thrilled for us. We have some wonderful friends at the club, it's very close-knit."

Not that anything knitted is generally in evidence.

If Margaret, 53, and Brian are not going to rush out and buy new wardrobes, how are they going to spend all that money?

She and Brian, 59, intend to pay off the mortgages on the two houses they own in Romney Marsh, Kent, and give some money to each of the eight children they have between them.

Other than that, they are quite giddy about a trip to a naturist camp somewhere in Europe, possibly near Perpignan in the South of France. Perhaps they could even buy a stake in it.

So nothing, in essence, will change. Why would it, since the thing they enjoy doing most in the world — taking their clothes off — is free?

Both of them intend to continue working at Dungeness Power Station in Kent, where Margaret is a program controls administrator and Brian a security guard. Weekends will be spent at the Invicta club, where they will strip off and commune with nature.

What's it all about there?  "There is this sense of freedom when you take your clothes off," explains Margaret. "It's a bit of a leveler. After all, we all came into the world naked.

"People might imagine that going about in the nude is embarrassing, but it's the opposite — it releases you from your body hang-ups. I wouldn't say I have a problem with my body shape, but when I put my clothes on I'm not as confident as I am with my clothes off. When you're naked, nobody judges you by your appearance.

"It's really nice to get out of bed and not bother putting your clothes on. You're not restricted, you're actually less inhibited."

Nudists are nothing if not practical. "If it's not that warm, we will wear something," says Margaret, a naturist of 24 years. She discovered naturism when she was married to her first husband, the father of her two children — Sarah, 31, and Simon, 24 — from whom she was divorced in 1991.

"We had a friend who was a naturist and we'd sunbathe naked in his garden. I started sunbathing naked in my own garden and would sometimes watch TV with no clothes on, which I still like to do."

When she got together with Brian, it was only a matter of time — the fourth date — before the subject of naturism came up.

Brian had been widowed for a year, following the the death of his 61-year-old wife, Diane, with whom he had two children, Emma, 30, and Aimi, 29. He also has a 39-year-old son, Andrew, from a previous marriage, and is stepfather to three more daughters, Michelle, 42, Caroline, 40, and Natalie, 39, from Diane's first marriage.

"Diane and I were having a coffee together one evening when she had a heart attack and died," says Brian. "It was a week after our silver wedding anniversary. It was a terrible shock and it has been a long grieving process. But Maggie is helping me through it." He had his doubts when Margaret told him about her naturism and suggested he come along to the club. But eventually he concluded: why not?

"Until then, I'd never considered naturism," says Brian. "The first day I went to the club it was raining. There was this group of naked people in the rain playing mini ten (a version of tennis). I thought to myself, you're all mad.

"Then I reckoned, now I'm here, I'll give it a go, so I took off my clothes and went about my business. I was self-conscious at first, but that feeling soon went away.

"Now I love it. When you come through those gates, all the problems of the outside world stay outside. It's nice not being cluttered by clothes."

Being a naturist amounts to doing exactly what you would do as a "normal" person — but without your clothes on.

During a typical day at Invicta, Brian and Margaret will get up and have a cooked breakfast or cereal in the chalet, or on the table outside if it's warm.

Mid-morning they might wander over to one of their friends' chalets for a chat, and then do some gardening, mowing the grass, trimming hedges. The camp has a pavilion with a communal kitchen where members go for a cup of tea and a snack. Inside, there is also a reading area, pool and snooker tables, and table tennis.

In the afternoons, Brian and Margaret might sunbathe by the pool and go for a swim. Often they play mini ten. There is also French boules and volleyball. For sports, they might wear socks and trainers and, if it's very hot, a sun hat. But otherwise they are completely in the buff.

In the evenings, some people dress if it's chilly. Everyone gets together for a barbecue outside and then a disco in the pavilion. To an outsider, the sight of a naked person dancing with someone in a shirt and trousers or a skirt and jacket might seem odd, but at Invicta, a members only camp where Margaret bought a chalet five years ago, no one bats an eyelid.

Margaret, the daughter of an Army corporal, says all sorts of people are members: teachers, lawyers, church-goers.

It's a lovely, relaxed way of life, she adds, and the newly converted Brian admits the hardest aspect is putting on your clothes at the end of the weekend. "It's the sign that you have to get back to real life," he says.

When I suggest — in innocence — that "anything goes" at the club, Margaret, who has no doubt had to contend with a quite a bit of innuendo over the years, tries to make a few things clear. "It depends what you mean by anything goes. It's a very family-orientated place with a very nice atmosphere," she says.

No sneaky peeking?  "Not at all.  On the contrary, one ceases to look at someone's body at all.  We love the serenity of the place, the birds and the trees and the gardens."

Brian added, "Some people have this idea that's it's all about perversion and swinging, but that's not the case at all. You talk to the person's face, not their body." And so the routine of a week working in the power station and weekends naked in the woods continued as normal until two weekends ago when their Lottery numbers came up.

"We have three lines each week," explains Brian. "The line that won is made up of family birthdays.

"I know it sounds odd, but for some time I've had a warm feeling about that line, that it was going to come up.  Don't get me wrong, it was a huge surprise and I was dancing around the room like a lunatic, but I somehow knew it would happen one day.

"I have a feeling that Diane, my wife, had something to do with it. When I saw the numbers I looked up at the sky and said, thank you very much, to Diane. It was a wonderful feeling.

"It's been very hard over the past few years, losing Diane so suddenly. I get sad at times and I feel sad for the girls because they miss their chats with their mum. But we're getting back on track and Margaret is helping me.

"I hadn't really looked at the naturism as part of the healing process, but in a funny sort of way, I think it is."

A few days after their win, Brian and Margaret traveled to Camelot's HQ in Watford, Hertfordshire, to collect the check — with their clothes on. "It was an unbelievable feeling having all that money in our hands," says Brian.

"Afterward, Maggie and I took the train to the center of London and, on the spur of the moment, we went for dinner and saw Joseph And The Amazing Technicolor Dreamcoat. We just walked into the theater and bought the tickets. It was really something to be able to do something like that and not worry about where the money was going to come from."

Since the win, the couple have been at work as normal, apart from the day to pick up the check and a Camelot photo-shoot, where they posed naked with a strategically placed giant Lottery ball in front of them.

"Nobody at work knew we were naturists so we've had a bit of ribbing about that, but everyone has been lovely, congratulating us and saying really nice things," says Brian.

"They're a great bunch of lads and I don't want to give it up just yet, and Margaret feels the same. It's given us a feeling of security that is just terrific."

This weekend, as usual, Brian and Margaret will be back at the club. There's a craft workshop taking place today and Margaret, Brian and their friends are planning to settle down in the pavilion for some card-making and pottery.

To the members of the Invicta Sun Club nothing could be more natural than sitting naked at a pottery wheel — presumably, they do their utmost to avoid embarrassing spills, and one hardly dares imagine what sort of plaster casts they might be tempted to make.

And so life will go on for the couple who may well have just become Britain's richest — and happiest — nudists.