An Albuquerque woman tried to poison her two roommates after one of them caught her having sex with a dog, police said.

One of the roommates said she found 53-year-old Shari Walters lying nude in a backyard shed with her German shepherd, Spike.

Walters admitted to having sex with both of the roommate’s German shepherds, the woman said.

A male roommate who had been dating Walters broke up with her “because she was having sex with dogs,” police said.

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While having dinner that night, Walters’ ex-boyfriend and the other roommate noticed their food tasted odd and their water wasn’t clear.

“Aren’t you going to eat?” the roommate said Walters asked her.

Then she said Walters attacked her and admitted to putting rubbing alcohol in their water and toilet bowl cleaner in their food.

She also said she had been having sex with dogs since she was 14.

Veterinarians who examined the dogs said they suffered minor injuries as a result of the sexual encounters.

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Both roommates were treated for minor symptoms related to ingesting harmful chemicals.

Walters was charged with aggravated battery, cruelty or extreme cruelty to animals, and assault with intent to commit a violent felony.

Watch this video report posted online by KOAT-TV: