Ten siblings around the North Island have given up alcohol for Dry July to raise money for cancer patients.
The O'Sullivans are taking a break from booze to help improve the quality of life of cancer patients.
Sean O'Sullivan, number six in the clan and a Wellington-based lawyer, roped in his siblings Trish, Paul, Tess, Kitty, Maryanne, Kerry, Jane, Clare and Leigh.
Mr O'Sullivan's first girlfriend died of a rare kidney cancer at just 17.
Since then, the family have lost their father to bowel cancer, while other family have suffered with leukaemia, neuroblastoma, Ewing's Sarcoma and breast, liver and bone cancer.