A PRESTON student has spoken of her shock after discovering soft porn pictures of herself and her sister had been posted on a sleazy Danish website.

Leanne Hudson, 21, is featured on the Copenhagen-based 'Ekstrabladet' site in a passionate embrace with her 18-year-old sister, the pair are both naked.

The University of Central Lancashire marketing student had initially agreed to pose for saucy shots with a group of ten friends for a Breast Cancer Awareness charity calendar.

After months of organising local sponsorship the girls were thrilled when Cambridgeshire-based photographer, Nishan Singh, offered his services free.

But, after signing a model release form during the two-day photoshoot, the girls were dismayed to learn their cheeky pics were featured on both Ekstrabladet and The Sun websites.

In the picture with her sisiter, which Leanne admits resembles "soft porn", the pair are stood naked in a bath and Leaane's hands are covering her sister's private parts as the pair pretend to canoodle.

Leanne said: "We're so ashamed of ourselves. Our mum is going to disown us!

"Initially we sat in the bubble-filled bath wearing bikini bottoms as a naughty pic.

"But then we were asked to take our clothes off because they were in view of the shot and it just developed from there.

"Nishan kept saying how he would really love to work with us and, before we knew it, we were agreeing to the shot that's up on the web.

"As soon as it was over we both looked at each other and just realised how stupid we had been.

"We are consenting adults but you don't realise how easy it is to end up in a compromising situation."

Mr Singh says he did nothing wrong and sent the pictures to the Danish website to raise awareness of the calendar.

The 'girl-on-girl' photo was, he says, included by accident.

Singh said: "The picture isn't that bad but I have apologised to the girls for the mistake, it was a genuine mistake.

"I did the calendar for free, there are other images that I have not done anything with.

"The model release form was to protect myself just as much as the girls.

"It expressly says that the photos could only be used to raise awareness for the calendar, and that's what I have done.

"I have no intention of passing the pictures left, right and centre, or any intention of upsetting the girls."

So far the £6 calendar has raised more than £2,000 through university campus and on-line sales.

But Leanne is now urging others to be wary about who they trust if attempting to raise cash in a similar way.

"We went along with what the photographer said and put our trust in him," she said.

"None of us had done anything like this before and I do feel that we were perhaps slightly naive.

"He knew what we wanted as we had sent him pictures from lads mags Loaded and FHM.

"He's a very good photographer but just has views quite different to ours."

A spokesman for the Charity Commission said: "We would advise anyone considering fundraising stunts to think long and hard about their objectives and about the needs and sensitivities of the people they seek to influence."