The Transformers star once had an unusual house guest named Piggie Smalls, but she was unable to keep the creature and blamed a house move on her decision to give away the animal.
However, Fox's husband Brian Austin Green has now revealed they had to get rid of the pig because he began to display some worrying behaviour.
He tells Australian radio's The Kyle and Jackie O Show, ""I'd had pigs before and they're... really fun, cool animals to have around, they're really smart. They're cool pets to have. But ours got really sexually aggressive because we didn't get him fixed and he literally got to the point where he was mounting and humping anybody that came over to our house... It's different between a dog and a pig, because a pig has hooves so they really dig in and go to work and on top of that they try to bite you! (But) they're really interesting pets.""