Twisted Patricia Newman, 40, had even trained her pet Alsation to have sex with her, a court heard.
She was arrested after police found a video of the vile act.
Newman and her 44-year-old husband Timothy Newman also faced charges for a string of child pornography offences.
He was told he faces jail – after he admitted filming up the skirts of young girls and women in public places.
The pair appeared in court today following the discovery of hundreds of child porn images at their home in Great Wakering, Essex.
The warped couple were charged with 14 counts of making indecent images of children and one count of possessing indecent images of children when they appeared at Basildon Crown Court.
Tubby wife Patricia denied the 15 offences and they were ordered to lie on file.
However she did admit to having sex with an animal – the family’s Alsatian dog.
Her husband admitted all the charges against him except two counts of making indecent images.
He also pleaded guilty to two counts of committing an act of outraging public decency by filming up the skirts of his unsuspecting female victims.
Andrew Jackson, prosecuting, said it was clear from video footage seized from the defendants’ home, the dog had been trained to have sex with Mrs Newman.
But he warned the couple: I am granting you unconditional bail, but you must understand you may well both go to prison.
