NEW YORK (AP) — Sean “Diddy” Combs′ one-time personal assistant testified Wednesday that he was in charge of cleaning up hotel rooms after the hip-hop mogul’s sex marathons — tossing out empty alcohol bottles, baby oil and drugs, tidying pillows and making it look as if nothing had happened.

An implied part of the job was that “protecting him and protecting his public image were important to him,” George Kaplan told jurors at Combs’ federal sex trafficking trial. “That’s what I was keen on doing.”

Kaplan, who worked for Combs from 2013 to 2015, said the Bad Boy Records founder would sometimes summon him to a hotel room to deliver a “medicine kit,” a bag full of prescription pills and over-the-counter pain medications. He said Combs dispatched him to buy drugs including MDMA, also known as ecstasy.

Kaplan, 34, was granted immunity to testify after initially telling the Manhattan court that he would invoke his Fifth Amendment right against self-incrimination. Prosecutors contend Combs leaned on employees and used his music and fashion empire to facilitate and cover up his behavior, sometimes making threats to keep them in line and his misconduct hush-hush.

Kaplan testified that Combs threatened his job on a monthly basis, once berating him for buying the wrong size bottled water. Combs’ longtime girlfriend, the R&B singer Cassie, testified that Kaplan quit after seeing Combs beat her.