Federal investigators are keenly interested to find out if Sean "P. Diddy" Combs ever had sexual relationships with underaged boys, according to a convicted drug dealer who says he was questioned about Diddy and other celebrities during a series of proffer sessions intended to determine if he should be offered a plea deal.

James "Jimmy Henchman" Rosemond, a hip hop mogul and drug trafficker who ordered the 1994 Tupac shooting, was convicted last year of running a multi-million dollar cocaine operation, moving drugs across the country hidden inside musical instrument cases and communicating with associates using encrypted e-mail.

But back in 2011, before Rosemond was tried, he participated in a series of nine pre-trial proffer meetings, during which federal prosecutors, DEA, and IRS agents questioned Rosemond and his lawyers to determine if a plea deal was possible.

Proffer sessions generally allow a defendant to cop to criminal activity without fear of it being used directly in court; they're an off-the-record way for defendants to let investigators know that they have something to bargain with.

Despite Rosemond's deep involvement in the hip hop world (in 2012, he was also accused of arranging the murder of an associate of 50 Cent), the feds declined to offer Rosemond a deal. He was convicted at trial and sentenced to life.

Now, according to an affidavit filed last month and procured by the Smoking Gun, Rosemond is claiming that the proffer sessions were inappropriate, dominated by questions about his relationships with celebrities like the Rev. Al Sharpton and musician Wyclef Jean, and "entertainer's sexual preferences, including but not only, Sean Combs having sexual relationships with under aged boys," according to the affidavit.

Rosemond also claims that one prosecutor began showing him photographs of naked women.

Rosemond, who fired his attorney, is now suing for a new trial, claiming ineffective counsel. Almost all of the information about the proffer sessions come from his new motion; prosecutors are barred from discussing the meetings.

[image via AP]