A handful of witnesses took the stand in Sean Combs' sex-crimes trial, including a psychologist, a federal agent and a former aide.

Sean “Diddy” Combs’s federal sex-trafficking trial continues on Day 9, with Kid Cudi and ex-employee George Kaplan expected to testify.

Proceedings on Tuesday, May 20, are beginning with Combs' former personal assistant David James and could also feature an exotic dancer known as "The Punisher" as well as Ventura's mother. Ventura's testimony has been the focus of the trial, with other witnesses having been asked about her alleged experiences.

Follow The Post’s live updates from the Sean “Diddy” Combs sex-trafficking trial in Manhattan, where the disgraced rap mogul is facing charges that could land him life in prison

Sean Combs' highly publicized trial will not be broadcast on TV. Find out how you can keep up with the ongoing case here.

Regina Ventura, the mother of Combs' ex-girlfriend Cassie Ventura Fine, told the court on May 20 she was "physically sick" over the rapper's alleged abuse and said she was once pressured to send him $20,000 after he raged at her daughter. "I was scared for my daughter’s safety," Ventura told jurors.

Sean "Diddy" Combs's federal sex-trafficking trial continues on Day 9, with Kid Cudi and ex-employee George Kaplan expected to testify.

Forensic psychologist Dawn Hughes is testifying about the nature of abusive relationships in Sean “Diddy” Combs’s sex trafficking trial.Hughes said it’s common for victims to stay in abusive relationships,