I used my period blood for a Chucky Halloween costume — haters were shocked but it’s more authentic

She just wanted to have a bloody good time.

A Brazilian beauty queen celebrated Halloween hardcore this year when she embellished her Chucky costume with her own menstrual blood — a move that divided her fanbase.

“I received a lot of criticism from friends and even family,” Larissa Sumpani, who boasts more than 600,000 Instagram followers, told Jam Press of her gory getup.

What inspired her to pour her own plasma onto her outfit?

The Rio de Janeiro native explained that she loves to go “beyond the ordinary” with her costumes, adding that using her own blood “seemed like the perfect choice to make the look more realistic and visceral.”

Photos show the bombshell donning a skimpy ensemble that evokes the “Child’s Play” villain’s signature rainbow sweater and overalls with her blood artfully spattered across her face and body.

Gawkers took issue with the influencer employing said secrete ingredient in her killer doll cosplay.

“People found it strange and felt it could bring bad energy,” lamented Sumpani, who said she received flack from relatives and pals as well.

She ultimately “wanted to give the costume a more authentic touch,” the Brazilian said.

“I thought using my own blood would make the look more real and even more shocking,” she argued. “I think Halloween is about breaking free from conventions and exploring the darker side of oneself.”

And that’s not the only unique Hallow’s Eve custom practiced by Sumpani: she also vows to abstain from sex for seven days leading up to Oct. 31.

“A lot of people don’t understand the meaning of this for me,” she said. “For me, it’s an important tradition, and I won’t give it up.”

Sumpani and her sister Rafaela, known as the “X-rated Kardashians” online, reportedly rake in more than $10,000 a month sharing kinky content on OnlyFans.

Larissa, meanwhile, is also the reigning champion of Brazil’s legendary Miss Bum Bum competition, which is essentially a booty beauty pageant.

In fact, the gluteal-y-endowed gal boasts such an enormous asset — her posterior allegedly measures 40 inches around — that she frequently gets accused of having a fake fanny.

Fed up with haters, Sumpani took X-rays that seem to prove it’s no booty-leg.

“My butt is completely natural — I’ve never done any procedure on it,” she declared.