My Stepbrother: No one will no

This is the original, however, read the re-write version: Beware the boy dressed in all black (My step-brother)

"Can you stop touching me" I said
"Why would I do that. Your so sexy. I want to have you . Come closer to me. Let me teach you what a man's all about" he said
"No you can't " I replied
"Why not " he said kissing down my neck
"Because your my stepbrother and we shouldn't be doing this " I said
"It's ok. If your not loud no one will hear us playing. No one will find out " he said. Now kissing my back
" I'm your brother after all. I just want to show my sister what life is. Be the first for her everything. It's my responsibility to make sure your prepared for everything " he said while reaching down to my----

No one will find out. That's what he said. I hope he is right
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Bridget's dad had left the family 3 years ago. Her mom been depressed ever since. Bridget does something that would help her mom: made a account for her mom on a dating website. But Bridget then regrets this, when her plan took a turn. Now it's to late to fix the mistake.
How can Bridget live with this. How can everything change after pressing enter on a stupid dating website