"He would bash my head, knock me over, drag me, kick me, stomp me in the head if I was down," Ventura, her voice breaking slightly, said on Tuesday as the prosecution's star witness on the second day of testimony.
Asked how frequently Combs was physical with her, Ventura, wearing a brown dress and visibly pregnant, said: "Too frequently."
Combs, 55, has pleaded not guilty to five felony counts of racketeering conspiracy, sex trafficking and transportation to engage in prostitution. If convicted on all counts, he faces a mandatory minimum sentence of 15 years and could face life in prison.
Prosecutors say Combs, who sported a grey beard and wore a beige sweater on Tuesday, lured women into romantic relationships, forced them to take part in days of drug-fueled sex parties and then blackmailed them with videos he recorded of the encounters.
Combs "viciously attacked" women when they resisted taking part in the parties, known as "Freak Offs" or otherwise upset him, prosecutor Emily Johnson said during her opening statement on Monday in Manhattan federal court.
Ventura, 38, told jurors she did not want to engage in the Freak Offs but did so to avoid making Combs angry.
"I was confused and nervous but I also loved him very much and wanted to make him happy," Ventura said.
Ventura, who was in her early 20s when she started dating Combs, said he controlled much of her life and career.
"And I just felt like I didn't have much say in it at the time, being very young, naive, a people pleaser," Ventura said. She testified that she continued to participate in the Freak Offs because Combs used videos of the encounters as blackmail.
Combs' lawyers say prosecutors want to criminalise the rapper's "swingers" lifestyle in which he and his girlfriends invited other men to join them for sex.
Defence lawyer Teny Geragos conceded to jurors on Monday that Combs had a bad temper and jealousy problems but said this had nothing to do with sex trafficking or racketeering.
"Domestic violence is not sex trafficking," Geragos said.Â
"He is not charged with being a flawed individual."
Prosecutors introduced a video of Combs and Ventura on Monday, the first day of evidence in the high-profile trial. In the video, Combs throws her to the ground and kicks her in the hallway of a Los Angeles area hotel when she tried to leave.
Combs, wearing only a towel, is then seen grabbing Ventura's belongings and dragging her into the hallway. Combs apologised after the video first aired on CNN last year.
Marc Agnifilo, Combs' lead lawyer, has said the 2016 hotel incident depicted the aftermath of a dispute over infidelity. In a court hearing on Friday, Agnifilo said Ventura had a history of domestic violence, signaling he plans to use that to undermine Ventura's credibility with jurors.
Over the course of a two-month trial, jurors are expected to hear testimony from Ventura and two or possibly three of Combs' other female accusers, as well as his former employees who prosecutors say helped arrange and cover up his actions.
Johnson told jurors they would hear testimony from victims who said Combs routinely beat them and exploded with rage at the smallest slights.
"They will tell you about some of the most painful experiences of their lives. The days they spent in hotel rooms, high on drugs, dressed in costumes to perform the defendant's sexual fantasies," Johnson said.
Geragos said on Monday that prosecutors were trying to twist Combs' romantic relationships into a racketeering and sex trafficking case.
"Sean Combs is a complicated man, but this is not a complicated case. This case is about voluntary choices made by capable adults in consensual relationships," Geragos said in her opening statement.
