A serial killer famously quoted by Christian Bale in the 2000 film “American Psycho” is happier than a clam to be locked up in a California prison — and apparently never wants to leave, The Post has learned.

Edmund Emil Kemper, 67, known as the “Co-Ed Killer” who slaughtered his grandparents, six female college students, his mother and one of her friends in the 1970s, refuses to show up to his parole hearings because he’s having a grand old time behind bars.

“His feeling is that he — and this is his belief — no one’s ever going to let him out and he’s just happy, he’s just as happy going about his life in prison,” Kemper’s attorney, Scott Currey, told the parole board during his last official hearing in 2007 at his lockdown at California Medical Facility in Vacaville.

Kemper, who dismembered corpses and engaged in necrophilia, demanded a five-year “stipulation” through his lawyer so he wouldn’t have to deal with his next hearing three years later, shocking the board members, the transcript revealed.

“It was — but any time an inmate, I think, chooses to stipulate, particularly for this amount of time, as I understand it’s five years, it gives great cause for alarm,” said presiding Commissioner Mike Prizmich, according to the transcript.

Kemper was scheduled for another parole hearing in 2012, but it was waived for five years. His next hearing is set for 2017.

In “American Psycho,” Bale’s character, Wall Street executive and mass murderer Patrick Bateman, quoted Kemper in a funny scene at a Manhattan bar, but mistakenly attributed his words to another infamous serial killer, Ed Gein.

In the scene, Bateman explains to his Wall Street cronies, “When I see a pretty girl walking down the street, I think two things. One part wants me to take her out, talk to her, be real nice and sweet and treat her right.”

One of his buddies then asks, “And what did the other part think?”

Bateman leans forward and says, “What her head would look like on a stick!” He then bursts out in a maniacal laugh.

Kemper first made headlines in August 1964 when he killed his grandparents at the age of 15.

During a heated argument, Kemper shot his grandmother, Maude Matilda Hughey Kemper, in the head while she sat at her kitchen table in her North Fork, Calif., home.

Later that day, Kemper blew away his grandfather, whom he was named after, when the old man pulled his car into the driveway.

Kemper then called his mother, who ordered him to notify the cops.

Under police questioning, Kemper admitted that he “just wanted to see what it felt like to kill Grandma,” and that he offed his grandfather because he knew he would be angry.

Kemper was committed to a mental institution, Atascadero State Hospital, where he was given a battery of tests that revealed a near-genius IQ of 136.

Five years later, he was released from the institution and went to live with his domineering mother, Clarnell Strandberg Kemper, whom he detested, in Santa Cruz. He was 20.

After a few years of working odd jobs, Kemper embarked on his next crime spree that won him national attention by targeting mostly female students who were hitchhiking in Santa Cruz, Calif.

In May 1972, he was cruising around Berkeley when he picked up two Fresno State University students, Mary Ann Pesce and Anita Luchessa.

He drove the pair to a deserted area near Alameda, where he butchered them.

He put them in the trunk of his car and drove to his mother’s home, where he photographed their naked corpses before chopping them up and putting their body parts into plastic bags.

He then performed a sex act on their skulls.

His next victim was Aiko Koo, 15, whom he lured into his car while she was hitchhiking to dance class in September 1972.

While pointing a gun at her, he choked her to death and then sexually assaulted her corpse.

He struck again in January 1973, when he drove Cindy Schall, 19, into a forest and shot her dead.

Kemper drove her back to his mother’s home, decapitated her and buried her skull in a backyard garden.

He dismembered the rest of her body and dumped her remains in a nearby ravine.

A few weeks later, Kemper fatally shot UC Santa Cruz students Rosalind Thorpe, 24, and Alice Liu, 23, in his car.

He had sex with their corpses and chopped them up.

Over a month later, on Good Friday, Kemper killed his mother with a claw hammer as she sat up in bed.

He cut off her head and used it as a dart board before ripping out her vocal chords and tossing them in a garbage disposal, which he turned on.

The disposal spit back up bits and pieces of his mom’s tissue, prompting Kemper to later tell police, “That seemed appropriate as much as she’d bitched and screamed and yelled at me over so many years.”

Kemper then phoned his mom’s best friend, Sally Hallett, luring the 59-year-old over to the house so he could fatally strangle her.

He then took a road trip, traveling through Nevada and Utah to Pueblo, Colorado, where he pulled over and called police from a phone booth to give a confession.

But the cops didn’t believe him and told him to call back.

Several hours later, Kemper did just that, but this time he asked for an officer with whom he was acquainted.

He was taken into custody after he told the officer that he killed his mother and her friend.

At his trial, Kemper pleaded not guilty by reason of insanity, but was found responsible for eight murders and sentenced in November 1973 to life with the possibility of parole.