Kelly was revealed in the thirteenth episode of series 7 to have a fifteen-year-old half-sister named Tonya, whose care she was briefly responsible for. Kelly and Tonya were both fathered by a man named Homer. It was implied that he abused them both sexually. Tonya had a baby-boy named Enrico, who was in foster-care. Micky, who pretended to be Shane during a visit from a social worker during his brother's absence, found out from Tonya that Enrico was actually born out of incest with her father, who raped her. She begged him not to tell Kelly. After finding out that Homer abused them both, Micky injected tranquilizer into Homer's bloodstream in The Jockey toilets, and dragged him with Shane's help to a slaughter-house to dispose of him, doing his sister-in-law a tremendous favour in the process.