A woman bit off her former flame’s testicle after he refused to have a threesome with her, according to new reports.

Nunzia Del Viscio, 43, claims she was acting in self-defense when she committed the gruesome act in Edinburgh, Scotland on May 22 — but a court still found her guilty of assault and ordered her to pay her de-balled ex-beau $670 compensation, Scottish outlet STV reported.

Del Viscio had been out partying — consuming cocaine and a cocktail of other drugs — with her former boyfriend, Marcello Palma, before returning with him to a friend’s apartment, the outlet reported.

After their pals went to bed, she allegedly came into her ex’s room naked and demanded a menage a trois.

When he said no, she began destroying a bedroom and Palma insisted that she leave — and that’s where things went really downhill, he says.

“I took her clothes and threw them at her,” Palma, 44, told the outlet. “We were insulting each other and she came against me and bit my left testicle. I threw two or three punches and had a finger in her eye to push her away. She drew her head back and my testicle came out.”

Cops found Del Viscio in the apartment with blood on her teeth — as well as injuries to her eyes and bruising to her face, according to STV.

In court, Del Viscio’s defense attorney asked Palma if he had caused the injuries. He admitted he had, but added, “I was trying to stop her [from] biting my testicle.”

Del Viscio claimed that she had wanted to escape from the apartment, but Palma pushed her to the floor and pummeled her, according to the BBC.

“As he came to me I bit him,” she said in court, according to the network. “I just remember a noise and blood pouring into my mouth.”

Doctors managed to sew Palma’s testicle back into his scrotum — with 15 stitches — after the attack, the report said.

In addition to the fine, Del Viscio was ordered to stay home between 10 a.m. and 6 p.m. for six months.

Her attorney said there is a low risk of his client re-offending and that Del Viscio led an otherwise productive life, according to the BBC.