HAVING to keep Mum about her children's 'Big Brother' was the hardest thing that Siobhan Wilson has ever had to do .

But the secret was out when her eldest son Stuart was revealed to the nation as one of the Big Brother contestants.

Stuart, 20, from Macclesfield, entered the Big Brother house last Friday when the fifth series of the phenomenally popular show was launched.

And mum Siobhan gave a sigh of relief that the secret was out but she is also apprehensive about what the next few weeks hold for Stuart and his watching family.

As well as Siobhan there is dad Philip, 53, sisters Janet, 18, and Fiona, 16, and 'little brother' John, 14.

Talking exclusively to the Macclesfield Express she said she is very proud of her son, a former King's School pupil, who is now studying psychology at university.

"I only told my husband a few days before Stuart went in the house and the children only found out on the night he went in. But they are very excited about it."

She thinks he will do well in the house because he is good-natured and always fair. She also thinks his psychology training could help him figure out the other contestants.

She said friends were worried for her in case Stuart behaved inappropriately in the Big Brother house and embarrassed her.

Siobhan is worried about Stuart like any mum would be but she said: "I don't think he will do anything shocking as he is quite sensible. Because you only see the highlights on TV they show you the sensational bits and I am a bit worried he might be led astray by people like Kitten who is trying to organise a rebellion."

"I think he'll stay in for a while but he might not necessarily be what the public wants and it is who they want who wins."

Stuart is proud of the fact that he got four A grades in his A levels in psychology, IT, geography and general studies and he has told Big Brother that he wants to be a millionaire by the time he is 25.

His mum says he decided that after reading Richard Branson's biography which he actually bought his father for Christmas but read himself first.

She denies that Stuart has to wash his hair three times a day as has been rumoured and said he didn't grow it long until he went to university.

"He has always had short hair," she said. "Then he decided to grow it for fun and said 'I won't be able to do this when I'm working'."

Stuart is very sporty and enjoys going to the gym and played rugby at school.

And he also loves going out on the town in Macclesfield with three of his former schoolmates who together call themselves 'Team Handsome'.

Proud mum Siobhan said Stuart was a 'lovely boy' and he was always perfectly behaved.

"I never had any trouble with him growing up," she said. "He cares about others, he cares about his siblings and he is always truthful and fair. I am so proud of him."

She said Stuart doesn't have a girlfriend at the moment but if she had to say which Big Brother contestant he would be most attracted to she would say Shell.

"I think he likes her but he knows she is spoken for so he would respect that."

Her daughter Fiona has told her mum that they have to stop watching the programme all the time on the internet because it is taking up so much of their time.

But Siobhan agrees it is a very new and exciting at the moment and things might calm down a bit as the programme progresses.

She has already warmed to all the contestants. "I've got to like them all in a different way," she said.

Because Stuart comes from a large family and had to share a room with his younger brother, she said he would probably find it easy sharing a small space with other people.

"He is also very diplomatic, but tenacious," she said.

Siobhan is aware that Stuart and his friend and family will be in the media spotlight but she has told herself that if she gets upset about anything she reads or sees she will know what her son really is really like and what is true and what isn't.

Obviously Siobhan and the family are pleased for Stuart but the worst thing is not being able to speak to him for up to ten weeks.

"When he is at university we would speak at least twice a week so this is the longest period of time we have not had contact with him."

"I took him to the auditions in Manchester. He said it went well then said nothing about it until it was time to go in."

"I felt a little worried because of being thrown into the national media coverage. But it was what he wanted to do so I supported him."

"I am most worried that he has gone AWOL from university. He is in his second year and has missed his exams. I have e-mailed his tutors and asked if they will treat him sympathetically and let him resit his exams without marking him down."

Stuart's former headteacher at King's Dr Stephen Coyne said: "He was an extremely likable and popular member of our sixth form community and it would be fair to say that he was a highly social animal who will come across well in the Big Brother Household."

"The family have been great supporters of the King's School and all the children contribute in many positive ways both inside and outside the classroom."

"Though I'm not a devotee of this programme I will probably take some time out to monitor Stuart's progress and everyone at the school wishes him all the best."