Two pets are so close that the female cat suckles on the teats of the dog.
43-year-old Sarah Mallet recorded her three-year-old cat Mini nuzzling up to her dog Lola, also three, to show off their weird relationship.
It’s a freaky habit that has happened at least once every day and first started back in 2016.
Lola, a Dalmation, produced milk after experiencing a ‘phantom pregnancy’ when she was in season but never mated with a male dog.
As she developed teats ready for puppies, Mini, a Savannah cat, one day decided to latch on and try to drink the milk.
Florist Sarah, from Kings Lynn, Norfolk, says the form of bonding suppresses Mini’s suckle cravings and allows Lola to adopt the mother role she desires.
She has owned the two pets for around 18 months and also has five other cats living with her.
Ever since they started living with Sarah and her husband Bob, aged 60, Mini and Lola have been the ‘best of friends’.
But even Sarah, who adores her pets, admits the habit is ‘weird’.
She said: ‘One day Mini went into the suckling position and Lola just let her do it. She doesn’t seem to mind at all.
‘Lola licks her whilst she does it. They have a great bond together and are inseparable.
‘Some people may find it disturbing and I found it a bit weird at first. It’s a bit strange but we’ve just accepted that is what they do.
‘The dog takes the mother role and some cats need to suckle. It’s a comfort thing for them.’
Mum-of-four, Sarah, adopted Mini and Lola three months apart, in late 2016.
Cats and dogs are usually thought of as natural enemies but from day one, Lola and Mini have always lived happily together.
Sarah says the pair often play together and believes her pets show that dogs and cats can be ‘best buds’.
She said: ‘It shows the good nature of Lola and it’s nice that they get on so well.
‘Even if I wanted to I don’t see how I could stop it. They are both happy with the situation and seem to like bonding that way.
‘They bonded as a kitten and a puppy and grew up together so it must seem natural to them.’