One woman was hurt when her sister disowned her because of the tawdry nature of her employment. They completely cut off contact, until now. The OP's sister has a son who was recently diagnosed with cancer. Not knowing where to turn, she asked her twin to help them financial. This struck a painful cord with the estranged sister and she wonders if she is wrong to not help her twin after the pain she caused.
I (30f) am estranged from my twin (also 30f) because she objects to my working as a 'cam girl.' Even though I have never done anything inappropriate (I'm very unassuming I look like a girl next door so people won't know unless I tell them) around her kids (12m, 9f, 5m) because of my job, she says I'd be a "bad influence."