Breaking Celebrity News has learned that jailed junkie Cameron Douglas is creating jailhouse drama for sending what one expert is saying are sexually controlling and perverted letters from prison to a female admirer.

Michael Douglas' troubled 37-year-old son has been locked up since 2010, following a string of drug convictions, including one for dealing crystal meth.

Since his latest transfer to a low-security correctional institution in Connecticut, Cameron has been caught exchanging sexually charged mail with a mystery lady.

In a bombshell development, a handwriting expert commissioned by Breaking Celebrity News believes the inmate shows signs of being an entitled, sexually controlling deviant who may have sadomasochistic sensibilities.

"He's sexually perverted — there is no doubt about it," behavioral investigator Susan Constantine claims.

In a two-page letter obtained exclusively by Breaking Celebrity News, Cameron brazenly requests