The New York Law Department said Whitney B. pleaded guilty to burglary and animal cruelty, the New York Daily News reported Tuesday. Her full name was not revealed because she is being treated as a juvenile.
Whitney and a friend, Cheyenne Cherry, 17, admitted breaking into another young woman's apartment in The Bronx. They were angry at Valerie Hernandez, a former friend. The pair trashed the apartment and killed the kitten, named Tiger Lily.
Investigators said Whitney was the one who actually carried out the killing, turning the oven up to 500 degrees after shutting Tiger Lily inside.
Cherry, who pleaded guilty last month, is scheduled to be sentenced Sept. 2. She faces a year in jail.
When she appeared in court in July, she exchanged insults with animal rights activists.
Wisconsin business offering 'therapeutic cuddling' forced to close
Selena Gomez drops F-bomb, walks off stage during Jingle Ball performance