Russian spy babe's hot affair: Anna Chapman was kinky and 'great in bed,' says ex husband Alex

She may have been a true Cold Warrior, but Anya Kushchenko is red-hot in the sheets.

The flame-haired Russian hottie accused of being a deep-cover mole in the U.S. was a wild woman in the sack, her ex-hubby says.

"Anya was great in bed and she knew exactly what to do," said Alex Chapman, who married the then-Anya Kushchenko in 2002. "The sex was great and she had this incredible body."

Chapman told the British newspaper News of the World that he met the stunning spook at a rave in England in 2001 and immediately fell in love.

"I hadn't met anybody like her before," he said. "I was infatuated with her."

They began a torrid affair, which Alex Chapman says quickly veered into kinky territory.

The randy Russian had a penchant for whips and nipple clamps and once joined him in a mile-high sex romp aboard a Moscow-bound flight, he said.

"I found her Russian accent such a turn-on," said the 30-year-old psychologist trainee. "We were having so much fun. We also experimented with sex toys."

He said he's not surprised his former flame was accused of spying for Mother Russia, as she always had a deep love for James Bond films.

"If she is a spy then she's fallen into it because of the glitz and the glamor of it all," he said. "She used her looks to get noticed."

Through her lawyer, Anna Chapman, 28, says she is deeply "embarrassed" by photos of her gallivanting around the U.S. that made her the face of the alleged spy ring even though she is considered a minor player.

Alex Chapman says his ex wasn't always so flashy.

For the first few years of marriage, he said, they lived a "carefree" bohemian life in London, where she worked at banks.

But there was always a sinister side. Chapman says his bride told him that her father, Vasily Kushchenko, 53, was a senior KGB agent.

"Her dad was scary. He was very concerned about which direction my life was going, how I was going to 'earn my money,'" Chapman told London's Daily Telegraph.

After a few years of marriage, Anna Chapman began palling around more with well-connected Russian friends and grew increasingly secretive, Alex said.

"She fell in with a group of people who had a lot of influence. She would go to film premieres and became arrogant and obnoxious, always going on about powerful people she was meeting," he said.

By 2006, they had grown apart and had divorced, but she kept his name, and the two remained friends.

He said she later regaled him with tales of dating rich and powerful men who helped whisk her to the Big Apple, where she began a real estate business that became successful suspiciously quickly.

"Clearly a lot of money had been pumped into the business from somewhere, but I couldn't work it out," he said.

Anna Chapman is charged with attempting to gain entree into American political circles and send reports on their inner thinking back to Moscow.

She has been held without bail since being arrested last Monday in an FBI sweep that nabbed 11 suspected Russian spies who lived quiet suburban lives around the U.S.