Casandra "Cassie" Ventura is opening up about why she participated in the "Freak Offs" — hours-long sex parties where she alleges her former boyfriend Sean "Diddy" Combs forced her into sexual activities with other men.

In Sean “Diddy” Combs’s sex-trafficking trial, star witness Cassie Ventura spent hours being cross-examined by the defense.

Thursday's testimony and evidence was in contrast to the violence and shame Cassie said accompanied "hundreds" of her encounters with male sex workers that Sean "Diddy" Combs watched and controlled during their relationship.