A secretive world of group sex and lavish gifts between porn stars and wealthy businessmen is unravelling in federal court—and people are getting nervous. One witness, porn star Justin Griggs, told the FBI that revealing the details of his relationship with “very powerful” David Geffen made him “fear for his safety.”

The case erupted in April, when FBI agents arrested a porn actor known as Jarec Wentworth for allegedly blackmailing a wealthy businessman referred to as D.B. and later identified by Str8UpGayPorn as telecommunications mogul Donald Burns.

The case, now in federal district court, is full of salacious details about private planes, luxurious parties ending in group sex, and envelopes full of cash handed out to participants the next morning.

But it’s the testimony of Justin Griggs—a porn actor and prostitute, that really stands out. Str8UpGayPorn obtained a copy of the cross-examination, which pulls Geffen into the mix—much to Griggs’ dismay.

According to the testimony, Griggs recently had dental work paid for by a “friend”—but not his friend Donald Burns.

“You mentioned you didn’t want to give details about an individual because he was very powerful and you feared for your safety if you disclose information,” the attorney says. “Who were you talking about there?”

“David Geffen,” Griggs answers.

Geffen’s only involvement in the extortion case so far seems to be that he provided financial support to Griggs, presumably in exchange for sex. David Geffen paying for sex. Who would ever have guessed??

Contact the author at gabrielle@gawker.com.