get moody and violent 
 
Bed head ... Shannon Flynn needs sex at least four times a day
  SEX addiction is big news after Tiger Woods and Ashley Cole both blamed it for  the womanising that destroyed their marriages.  Here, two self-confessed sex addicts tell how their obsession has ruined  relationships and driven them to despair, and a leading psychotherapist  gives his view on the condition.
Shannon Flynn, 26
WHEN Shannon Flynn hears her boyfriend's key in the front door at  the end of a working day there is only one thing on her mind - SEX.
Even though they would have had a steamy session in the morning, Shannon's  insatiable appetite means she has been thinking about nothing else for most  of the day.
Shannon, 26, a beautician from Edinburgh, demands sex at least four times a  day and can become moody and even violent if she is not satisfied. She has  spoken to numerous counsellors about her problem but so far no one has been  able to cure her addiction.

Addict ... Tiger Woods
She says: "It may sound like a fun, exciting addiction but it is actually a  serious problem, and often debilitating to live with.
"Hardly anyone can understand what I am going through on a daily basis. Every  hour of every day, all I can think about is sex." Shannon, who has been in a  relationship with banker Jamie Thexton, 25, for over a year, has slept with  more than 70 men over the past ten years, including several one-night stands  and casual affairs.
Control
She says: "I am not proud of being with so many men, but the addiction takes  control of my life. I will do anything to get my fix."
Despite now being in a long-term relationship, Shannon still constantly thinks  about sex when Jamie is not around.
She says: "Jamie works long hours during the day so when I have time off alone  I have to pleasure myself until he gets home.
"I can get lost in my own sexual fantasies for hours and I often totally lose  track of time.
"In the past I have been in trouble with my work because I am often late. I  don't feel I can leave the house until I'm sexually satisfied."
Like with any addiction, if Shannon does not get what she wants she will feel  moody and even become aggressive.
She explains: "If I can't satisfy my sexual desires the withdrawal symptoms  are horrendous.
"I can't think about anything else until I get a sex fix and my mood swings  become out of control. I've been to see my doctor several times about  becoming violent when I'm not allowed sex, and also paid to speak to four  different therapists. None have been able to help.
"It's a real problem and I am ashamed of my behaviour."
Although many men think they have struck gold when they discover Shannon has  an addiction to sex, they quickly discover that it is not every man's  fantasy.
She says: "One guy I was seeing for a couple of months found out how bad my  addiction was when he refused me sex before going to meet his mates.
"My need was particularly bad that day and I desperately wanted him to stay in  and give me what I needed. When he said no I lost it and threw my mobile  phone at him.
Seething
"The phone smashed on the wall by his head and he left immediately.
"I was seething with anger for hours, not because I'd broken my phone but  because he refused to have sex with me. I am not usually violent but my  desire for sex takes over all my senses."
Shannon thinks her obsession started when she went to sex education lessons at  school.
 
 She says: "I immediately became unusually interested in the idea of sex, much  more than my peers were.
"There was a science book called The Body Book that I read regularly in my  early teens. I was fascinated by it and I felt it opened the gates to my sex  addiction."
After losing her virginity aged 16 to her first boyfriend, Alex, Shannon  already knew that sex with him was not going to fulfil her needs.
She says: "He was lovely, kind and good looking but I quickly realised that  the sex we had was not enough. He couldn't keep up with my sex drive.
"Even when he did want sex, he wasn't that experienced and couldn't keep going  long enough.
"I wasn't satisfied and started looking elsewhere. Within months of meeting  Alex I was cheating on him with anyone who seemed interested in me.
"When we broke up after six months I looked anywhere for sex.
"My addiction led to me having sex with guys in nightclub toilets, alleyways,  parks and in cars.
"When I was 17 I picked up a guy in a bar and went to his car for sex.
"He wasn't good looking and I didn't even fancy him - it was purely the sex I  was interested in.
"It was pretty uncomfortable and there were a few people walking past but I  didn't care.
"Once it was over I got out and went back to meet my friends.
"I got what I wanted and he obviously enjoyed himself, so at the time I didn't  realise what a big deal it was.
"Now I can see that I put myself in so much danger. I was a slave to my sex  drive. Thankfully I have always been sensible about protection, and insisted  on using a condom and having regular sexual health check-ups."
Now happily with Jamie, Shannon is desperate for her addiction not to ruin  this relationship.
Respect
She says: "I don't want our relationship to turn out like Tiger Woods's. Jamie  is a wonderful boyfriend and I really want to treat him with the respect he  deserves, which means not cheating on him.
"But I do still want sex at least four times a day and I worry that he will  not be able to fulfil my needs.
"Obviously I don't want to cheat on him but my addiction often takes control.  It's difficult for most people to understand and I'm sure many will simply  think I'm a slut.
"But I do not enjoy having this problem and I would do anything to change  it. This is why I respect celebrities who speak out about their addiction.  They are making sex addiction an acceptable illness in society.
"Hopefully this means there will be more help for people like me."
Boyfriend Jamie says: "Having a gorgeous girlfriend who is always into sex is  not all bad. But when I've had a long day at work or if I'm feeling unwell,  it's a bit too much.
"In the past I have worried that she would be tempted to cheat on me but  Shannon reassures me she wouldn't do anything to hurt me.
"I hope that some day soon we can put all this behind us, get married and  settle down."
Danny James, 27
GRIPPED by fear and self-loathing, Danny James walked into an NHS  sexual health clinic and begged for help.
The tattoo artist, 27, had slept with more than 500 women and was hooked on  the highs his sexual adventures delivered.
But staff took one look at him, asked his age, then quickly turned him away.
They mistook him for a young lad "messing about".
Similar pleas to his GP fell on deaf ears.
Danny had hit rock bottom and, with nowhere to turn, tried to kill himself.

Suicide attempt ... Danny
He cut his throat and, on a separate occasion, took a drugs overdose.
Danny, who lives in Liverpool, says: "Many people hearing what I have to say  may think that I'm a lad who just likes having a lot of sex - but it really  wasn't like that.
"My dad left home when I was a baby and it was a big issue with me.
"I always felt that maybe I'd been part of the problem. I hated myself.
"Then, when I was 18, I entered a relationship that lasted years, on and off.
"The fact that it didn't work out knocked my confidence and I blamed myself.
"I closed myself off emotionally. The act of sex was my only release.
"I worked in a tattoo parlour in Blackpool. The town is full of bars and every  week hen parties arrive, full of women looking for a good time. The ladies  knew that we'd just have sex and that was that.
"I'd get an incredible rush and temporarily feel at peace. If I didn't have  sex I felt like I wanted to kill myself.
"I spent a fortune on hotels and drinks and landed myself with huge debt. I  didn't want to get close to anyone.
"I thought I'd end up wrecking their mind and damaging them too."
Danny thinks a counsellor recommended by a friend saved his life.
He adds: "I'm speaking out in case there is one man or woman out there with a  similar problem who is on the brink of suicide because they've got the same  trouble and don't know where to turn.
"There needs to be access to help, especially in places such as STI clinics.
"The addictive cycle is with me for life but I'm stabilised. Now, for the  first time, I feel ready for a normal relationship."