A defector has claimed Russian spy chiefs ordered Russian spy Anna Chapman to seduce Edward Snowden to keep him in Moscow for continued questioning about U.S. security secrets, reports the New York Post.

Former KGB agent and defector Boris Karpichkov said that Chapman, 32, and Snowden, 31, met only once. Chapman followed up that meeting last year by reaching out to Snowden on social media.

"Snowden," she tweeted, "will you marry me?!"

Karpichkov said the tweet was part of the plan to seduce Snowden, but that Snowden had second thoughts. If he accepted, he could have Russian citizenship, but that would lock him in Russia-citizens cannot leave the country without permission.

Last year, Chapman abruptly left an NBC interview in Moscow after she was asked questions about her proposal to Snowden, according to the New York Post.

The spy-turned-celebrity made headlines in 2010 when she was exposed as part of a Russian sleeper cell of agents in the U.S. She was arrested and deported in 2010 with nine others, accused of working for Russia's external intelligence agency.

Chapman, the daughter of a senior KGB agent, had lived in the U.S. and worked as a real estate agent in New York City.

Upon her return to Russia, Chapman became a runway model and hosted a TV show, reports the Mirror. She is also a youth division leader of the main pro-Kremlin party.

When Snowden fled the U.S., his long-time girlfriend, Lindsay Mills, was left behind in Hawaii. The Russian government granted him asylum in Moscow in August 2013 after he had been stranded in the city's airport for six weeks.

Mills reunited with Snowden in Russia over the summer. The two reportedly live together in Moscow.

Snowden remains in Russian on a three-year residency permit.

He is wanted in the U.S. after disclosing secrets of government surveillance programs.