Ok I have name changed so that I can be as honest with the details as possible without outing myself.
When my mum met my stepdad she was a single mum of four young girls. He had had allegations of child abuse made against him by his own daughters but was never charged due to lack of evidence. He convinced her that his daughters mum had put them up to it. I am hazy on these details as I was a child at the time.
A few years later my mum died and he became our guardian. My sisters and I were 17, 14, 10 and 6 and our Brother, Step Dads own child was 2.
SD became an alcoholic. oldest sister moved out with her BF when she turned 18 and the next sister began to get lots of cuddles on the sofa and began sleeping in bed with SD. She moved out at 16. Then I became his next victim and he sexually abused me too.
I moved out at 15 to live with friends and younger sister moved out around the same time to live with our older sister. All of this happened over a decade ago.
Younger sister found about the abuse to me as one of the neighbours had walked in on it and told her years later. She says that he never touched her in anyway but thinks that older sister and I should report him to the police or at least tell our brother what happened. Older sister denies it ever happened to her at all but we both know that it did. Younger Sister is threatening to tell our brother herself because she thinks he would want to know.
I have always refused to speak out, our brother doesn't even remember our mum so I think it is cruel to take away his dad too. His dad is now an old man, sick and no danger to anyone. He lives alone, a sad, lonely alcoholic with no life. Our brother visits him and cares about him but he is the only one.
So basically am I right in keeping quiet, how do I get younger sister to keep the secret? Is she right, does brother have a right to know what his dad is like. What would it gain now after all this time.
Obviously if my brother has children during his fathers life time I would have to speak out for their safety but I really don't see him as a threat to anyone now.