Sean "Diddy" Combs's former partner Casandra Ventura told jurors at the music mogul's sex trafficking trial Tuesday how he subjected her to "disgusting" marathon group sex sessions.

Ventura's bombshell testimony underpins much of the prosecution's case against Combs, who is alleged to have used violence and blackmail to manipulate women over many years.

Ventura said of the so-called "freak-off" sex parties that she was "just in love and wanted to make (Combs) happy -- to a point I didn't feel like I had much of a choice."

She described Combs urinating on her, or him instructing one of the numerous sex workers he engaged to do so, and paying the escorts, almost always men, thousands of dollars cash after encounters.

"It was disgusting. It was too much. It was overwhelming," she said, adding that the hotel rooms used for the marathon sex sessions were often trashed, with establishment's charging sizable cleaning and repair bills.

Asked if she enjoyed anything about the curated encounters that Combs allegedly instructed her to coordinate, Ventura wept openly, answering........

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