Kevin and Susan Barnett, both 28, from Barrow, Cumbria, were arrested after police uncovered their vile plot to abuse children in their care.
They were found guilty of arranging the commission of a child sex offence along with another woman, Nikita Moore, 22, who was convicted to commit child sexual offences.
The trio were only caught after police received a tip off and later discovered the text messages on their mobile phones.
Preston Crown Court heard how Moore had discussed having a child with Barnett, for them to abuse together.
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They also heard how Susan said she would be willing to comfort a child as it was raped by her husband.
All three denied the charges, saying the messages were all ‘fantasy’.
Judge Christopher Cornwell said: “You have heard the text exchange which at times no doubt disgusted you. We could go on and on with the disgust but the central question never goes away. Was there a conclusive agreement and was there an agreement that it should be put into action?
“I don't see any alternative to immediate imprisonment.”
The three are set to return to Preston Crown Court for sentencing on 5 February 2015.
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