New Delhi, May 14 -- Cassie Ventura, the singer best known for her 2006 hit "Me & U," delivered harrowing testimony in US federal court Tuesday, alleging that music mogul Sean "Diddy" Combs forced her into disturbing and degrading sexual acts during their years-long relationship.

Now married to fitness trainer Alex Fine and currently eight months pregnant, Ventura appeared in Manhattan federal court as a key witness in Combs' ongoing sex trafficking trial. Her testimony painted a deeply troubling picture of abuse and coercion.

Speaking under oath, Ventura described being forced into orchestrated sex encounters-referred to as "Freak Offs" - which she said Combs often filmed. "I was expected to have freak offs on my period," Ventura was q...