The court heard Spree sent photographs and videos to Dylan Westall, 35, who was convicted of manslaughter over the death of 17-year-old James Meadows, shot in the head as he rode as a pillion passenger on a motorbike in Huyton.
Police also found two pillow covers at Spree’s home embossed with a picture of the face of Westall, who is serving a life sentence with a minimum of 22 years behind bars.
She also had inappropriate relationships with 44-year-old Thomas Porterfield, serving a 13-year sentence for conspiracy to possess a firearm with intent to endanger life, and another man who cannot be identified for legal reasons.
When Spree’s mobile phone was seized, police found she had exchanged images and videos of a sexual nature with all three men.
Details of requests for cannabis and contraband from the prisoners were also uncovered in her phone messages.
Andrew Scott, prosecuting, said: “So frequent were the deliveries that Ms Spree described herself as the prison version of Deliveroo.”