A Dutch teenager who reportedly identified as a dog allegedly stabbed her parents to death and knifed the family’s pet golden retriever — before sending pictures of the bloodbath to her classmates, according to reports.

A 15-year-old girl from Groningen in the Netherlands was arrested after her parents, Johan and Mathilda, both 53, were found fatally stabbed last Thursday, Dutch outlet Algemeen Dagblad reported.

The family dog also suffered stab wounds in the rampage, the Sun reported. Its condition is unclear.

The girl took images of her slain parents and shared the disturbing pics with her friends on WhatsApp after the bloody attack, the Telegraaf reported.

“You could see both of her parents lying on the ground with their eyes open. Her father was lying on the floor, and her mother was on the bed. There was blood visible and a knife,” one student told the outlet in Dutch.

Local police declined to comment further on the images, but encouraged people to never distribute such images online and report them to the police, the reports said.

The girl reportedly struggled with her identity and often pretended to be a dog, crawling around and barking on all fours with other friends in school corridors.

“She wore a tail, dog ears, and gloves,” another classmate told the outlet. “And sometimes she would make barking sounds.”

Johan and Mathilda’s relatives said in a statement obtained by Algemeen Dagblad that they “can hardly comprehend” the murders.

“We hope that everyone understands that we are deeply affected by the tragic events surrounding the passing of Johan and Mathilda from Meerstad,” family and friends said in a statement through an aid organization.

“But the support and sympathy we have received from many do us good and are heartwarming.”

An investigation into the slayings remains ongoing.