Rio Ferdinand smuggled lover Lauren Alcorn into England team hotels for wild, four-times-a-night sex before World Cup clashes.
On one occasion he paid a doorman to sneak her in through a back entrance after manager Sven Goran Eriksson barred players from bringing girls back.
He also flouted Man United boss Alex Ferguson`s strict ban on sex before matches with a mind-blowing romp with Lauren the night before a crunch local derby.
And if he couldn`t see her in person he would exchange up to 50 sex texts a day - before and after training sessions.
Lauren told the Sunday Mirror: "Rio was obsessed with sex - if he wasn`t doing it then he`d be acting it out over the phone with me. Once he even told me he was pleasuring himself at the wheel of his car."
The pair first met on December 23, 2000, on a blind date at a nightclub in Lauren`s home city of Nottingham.
"Dave, the club manager, was always asking me why I didn`t have a nice boyfriend," said Lauren. "One day I joked that I really fancied Frank Lampard. The next week he said he knew Frank and that Frank had a pal called Rio who would like to meet me.
"We met on December 23, 2000, in Dave`s club and I was attracted to Rio straight away. He had a little goatee beard and his hair was shaved really short. There was an instant chemistry between us and at the end of the night we swapped numbers.
"He sent me a text from the Leeds team coach on Boxing Day inviting me to his flat a few days later. We went out to dinner at a little Italian restaurant and then picked up a video. I drove my Peugeot 206 because he said he`d pranged his Aston Martin a few days earlier.
"When we got back we watched the video and then ended up in his bedroom. I`d undressed in the bathroom and put on a pair of pyjamas. But when I got into bed Rio was wearing just boxer shorts and was clearly aroused. He began stroking my skin and telling me how soft it was. He had a fabulous body - the best I`d ever seen. I`d only slept with three other people and none had been a patch on Rio.
"He slipped my pyjamas off and told me how fantastic my breasts were. He began caressing my bottom and said it was the best bottom he`d ever seen. Pretty soon we were kissing and I couldn`t resist any longer.
"The sex was amazing. He is very well endowed and knew exactly what he was doing. That first time lasted about 20 minutes - he never wore a condom - and we fell asleep in each other`s arms.
"A week later I went to see him again. This time it was a little more adventurous. We did it three times that night and each time was better than the previous one. I`d never known a man with so much stamina.
"For the next six months we met up every fortnight and the sex just kept getting better and better. We met at his place in Leeds, my house in Nottingham, and at hotels in London whenever he had away games there and I was working at Heathrow.
We never really went on what you would call a proper date - drinks or meals out or to the cinema. For us it has always been about sex. Rio isn`t one to spend a lot of money. On the few occasions we have been out, I`ve had to pay my own way. He tells me it`s my round if he bought the previous drinks. I dare say people won`t believe how tight he is, but it`s true. He earns pounds 100,000 a week and yet I have to buy a round of drinks when we`re out.
"In February 2001, we met at his favourite hotel, The Sanderson in London. Rio had played a match in London and didn`t get to the hotel until 11pm. I was in bed and he undressed and slipped under the covers next to me. He kissed me all over my body then we made love for hours in just about every position imaginable. The sex was just amazing. Rio climaxed four times that night."
Lauren told how they began to introduce adult toys into their love-making. "`It was wild, rampant sex and neither of us could get enough," she said. "We made love on the bed, against the wall and on the floor.
"Our entire relationship was based on sex. We even stopped talking beforehand. We`d just meet in hotel rooms, undress without uttering a word and begin having sex."
In June 2001 Rio was so desperate for sex he sneaked Lauren into the England team`s hotel - Sopwell House in St. Albans, Herts - prior to the side`s World Cup qualifier against Greece in Athens. "He picked me up from my home in a chauffeur-driven BMW," said Lauren.
"When we got to the hotel Rio jumped out of the car and told the driver to wait. I watched him talk to the doorman and hand him some money, then he jumped back in the car and the doorman waved us round the back to a staff entrance. We walked through the hotel kitchens and along various corridors to his room.
"He told me it was against the rules to have girls in the hotel and that we had to be careful not to be seen. That night Rio and I had sex for hours. It was almost light when we eventually fell asleep."
Lauren, whose father died when she was 18 and whose mother runs a successful kitchen and bathroom business with her two older brothers, landed her dream job as an air stewardess for Virgin Atlantic aged 19. She is now a supervisor looking after passengers on long-haul flights from Heathrow to America, the Caribbean and the Far East.