I can't believe Im actually writing this. I found out my sister, who has two children from previous relationship, has been seeing a man who is on the child sex offenders register. He was caught downloading child porn on a work computer. My sister is saying there's a fine line and he didn't know the girls were under age. I'm sickened. AIBU to feel like she's trying to pull wool over my eyes. As he's done so with her.