Sean “Diddy” Combs spared no expense while planning his “Freak Off” sex parties — and even had hundreds of mirrors mounted on the walls and ceiling during one event so that he could get a better view of the debauchery, a planner tells The Post.

“Everywhere you looked, you’d see yourself reflected again and again,” the planner said of the early 2000s party at Combs’ mansion.

“You can imagine what it would look like when people are naked and having sex on the floor, on the couches, wherever.”

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Sean “Diddy” Combs with his attorney Anthony Ricco, and with his mom seated in the back, in a court sketch during a federal court hearing in Manhattan.

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A planner told The Post that Sean “Diddy” Combs’ “Freak Off” sex parties weren’t cheap: He once spent around $500,000 on mounting mirrors on the walls and ceiling of his home so he could get a better view of the debauchery

The event was part of one of Diddy’s many high-profile parties that turned into an orgy as the night went on, the source said.

And money was no object.

“They cost about $500,000 per party,” said the planner.

“This is for both the mainstream part, and then the sex party afterwards.”

She added: “Great food, expensive alcohol, dancers, acrobats, models. Sometimes we had live animals, sometimes different performers. It all added up, but he didn’t care.”

Days after the event, the mirrors were removed and the mansion went back to its original state, the planner said.

“It was definitely a vibe he wanted to put out there, that everywhere you looked there would be sex happening. It was wall-to-wall debauchery.”

The Post has independently verified that the planner, who asked not to be named, worked with Combs in the early to mid-2000s.

The planner said she was hired to arrange the food, alcohol, entertainment and decor — but had no say in the guest list or the sexual component of the events.

“He was hiring both men and women who called themselves ‘models,’ but it seemed obvious, at least to me, that they were actually sex workers,” said the planner.

“But that wasn’t my role; that would be the role of a member of his team. I just handled the mainstream stuff.”

When it came to money, “All he would ask was, ‘Is it going to be a great party?’ If the answer was yes, he was willing to pay.”

The Post has viewed more than two dozen videos of raucous sex parties, which appear to be footage of Diddy’s “Freak Offs,” which were timed to mainstream events including the MTV Video Music Awards or the Super Bowl.

The planner said regarding his early 2000s party at his mansion, “Everywhere you looked, you’d see yourself reflected again and again.”Bryan Bedder/CP/Getty Images

The planner worked with Combs in the mid-2000s as she was hired to arrange the food, alcohol, entertainment and decor — but had no say in the guest list or the sexual component of the events.Getty Images
In one video, it appears that Diddy himself took part in the action, holding the camera from his point of view while he appears to engage in sex with a woman.

The alleged behavior is consistent with similar allegations made earlier this month.

In one lawsuit, a woman alleges that Diddy and a female celebrity raped her when she was just 13 following the 2000 VMAs at Radio City Music Hall in New York.

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Additionally, Texas-based lawyer Tony Buzbee revealed a fresh wave of accusers — including one who was just 9 at the time — who were planning to sue the embattled music mogul for alleged sexual abuse and exploitation.

Combs has repeatedly denied wrongdoing and pleaded not guilty to all charges.

His lawyers said that the “Freak Offs” were consensual and never involved minors.

“In court, the truth will prevail: that Mr. Combs has never sexually assaulted anyone — adult or minor, man or woman,” his attorneys said in a statement after the latest lawsuit.

Federal officials raided two of Diddy’s homes in March, seizing hundreds of sex videos and a mountain of sex paraphernalia, including 1,000 bottles of baby oil and lube.

In a statement, the US Attorney’s Office alleged that the sex parties were not always consensual.

His alleged sexual abuse of women included forcing them to engage in frequent, days-long sexual activity with male prostitutes, some of whom were “transported over state lines,” according to the charges against him.

“These ‘Freak Offs’ were elaborate sex performances that he arranged, directed, and often electronically recorded,” the documents alleged.

“To ensure participation in Freak Offs, Combs used violence and intimidation, and leveraged his power over victims — power he obtained through obtaining and distributing narcotics to them, exploiting his financial support to them and threatening to cut off the same, and controlling their careers,” authorities alleged.

Diddy has been charged with racketeering conspiracy, sex trafficking, and transportation to engage in prostitution. In addition to the charges, he faces a myriad of civil suits from his alleged victims.