Christina Calello, 36, "willingly engaged in sexual activity with the dog" while Geoffrey Springer, 39, recorded them and put them on a flash drive, the Pinellas County Sheriff's Office said.
The dog was surrendered to deputies and taken to a local animal hospital for routine examination, with no visible injuries, authorities said.
Online records show Calello previously lived at various addresses on the Jersey Shore including Iselin, Marlboro and Lanoka Harbor. She was arrested last May for domestic battery, records show.
Calello, of Safety Harbor, and Springer, of Largo, were arrested Tuesday, Aug. 2 and charged with Sexual Activity Involving Animals.
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