A Florida couple allegedly suffocated a teen girl to death with a billiard ball before chopping her up and stuffing the body parts in the trunk after torturing her for a week over a missing ring.

Steven Gress, 35, and his girlfriend Michelle Brandes, 37, needed to dispose of the victim’s remains — but first they needed to celebrate Brandes’ birthday, cops wrote in a search warrant request obtained by the Tampa Bay Times. Gress and Brandes ate chicken at Popeyes and then played mini golf at Congo River in Clearwater, the 25-page warrant written by the St. Petersburg Police Department reportedly said. After their birthday bash, the two suspects allegedly drove around the Tampa Bay area looking for places to dispose of 16-year-old Miranda Corsette’s body.

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Eventually, they found a dumpster near where Gress’ grandparents lived in Ruskin and tossed Miranda’s remains there, the warrant reportedly said. They got lucky: Cops believe the dumpster was taken to a landfill and its contents — including Mirada’s remains — were incinerated. Now prosecutors will have to try and convict the couple without a body.

But helping the state’s case is the fact at least six people saw Miranda with the couple or knew she was being tortured, the warrant seeking to obtain the contents of Gress’ mother’s phone reportedly states. Per cops, Gress was known by neighbors to take disadvantaged women into his home. Miranda, a mother of an 1-year-old child, was a frequent runaway with mental health and drug issues, cops said. Detectives believe Gress and Miranda met on a dating app and took her to his home in mid-February. Gress allegedly spoke to neighbors about the girl and even bragged to them about hurting her.

“This little b—- stole my ring and won’t give it back,” he reportedly said. “So I’ve been beating her a–.”

Gress also allegedly sent nude pictures of Miranda that showed her increasingly worsening injuries to at least three people, including his mother. His mother denied seeing them.

While no one else has been charged, Sixth Judicial Circuit State Attorney Bruce Bartlett told the Times “there’s a pretty good likelihood of more to come.” Prosecutors are seeking the death penalty against Gress and Brandes.

Detectives also questioned a woman who lived with the defendants. She accused Gress of being abusive and he would buy animals off Craigslist and kill them by throwing them off a bridge, the warrant reportedly stated. Not long into Miranda’s stay, he accused her of stealing his ring, cops reportedly wrote. This sparked the weeklong abuse and torture, cops allege. As the alleged torture continued, Brandes said she found the ring. The roommate thought Brandes probably had it all along and took it so he would ditch Miranda, according to the warrant.

When an au pair from Brazil moved to Virginia, her life apparently became dedicated to two things: a romantic affair — and homicide.

Juliana Peres Magalhaes, 24, was once the live-in nanny at a two-story house on Stable Brook Way in Herndon, a medium-sized town that’s part of the broader Washington, D.C., metro area. Her charge was the young daughter of Christine Banfield, 37, and Brendan Banfield, 39.

Now, she could spend the next several years behind bars — although such a punishment appears to be exceedingly unlikely.

On Tuesday, Magalhaes pleaded guilty to one count of manslaughter in a Fairfax County courtroom, prosecutors announced.