Sean "Diddy" Combs' lawyers will question R&B singer Casandra Ventura, known as Cassie, for the first time in his sex-trafficking trial Cassie is the prosecution's key witness and has testified graphic details of alleged sexual and physical abuse at the hands of Combs

NEW YORK (AP) — R&B singer Cassie said Sean “Diddy” Combs’ infidelity was a painful part of their combustible, nearly 11-year relationship, as the music mogul’s defense team began cross-examination of the prosecution’s start witness on Thursday in his sex trafficking trial.

The 55-year-old hip-hop mogul has been charged by federal prosecutors with sex trafficking, racketeering conspiracy and transportation to engage in prostitution.

Cassie Ventura is expected back on the stand for cross-examination in the Sean "Diddy" Combs trial after accusing him of raping her in 2018.

Cassie Ventura took the stand in Diddy's trial and testified she received a $20 million settlement from a lawsuit filed in November and dismissed 24 hours later.

The second day of testimony from the singer and former partner of the rap mogul included further details of her recollections of "freak-offs" and multiple accounts of physical and psychological abuse.

On the witness stand Wednesday, Sean “Diddy” Combs’ ex-girlfriend Cassie Ventura listed out the many people who stood by or prevented her escape when she was allegedly beaten and stomped on by him over the course of their 11-year relationship.

Casandra 'Cassie' Ventura said Sean 'Diddy' Combs physically abused her and gave her a black eye before her movie premiere.