<human>: I am a 22 female, Okay so my mom had me with some guy she was seeing when she was younger, he wanted nothing to do with me and my mom moved on and met someone else when I was just a baby andthey eventually married. So in my eyes he is my dad. Now they together have 3 children who I share my home with and to them we have the same father they know no different. 

The other day some girl contacted me on fb to say she was my half sister, she is 14, i didn't believe it at first but it's true we both live in the same town. Turns out my bio dad also lives in the same town as me and I've never knew. She went on to tell me that she has a wee brother who is also my half brother and that my bio dad wanted to meet me.

I don't want to meet him to me I have my daddy and have no interest in meeting this man he never wanted me as a child so why now. I have explained this to her but she still wants to get to know me. But with these two half siblings I can't seem to get it out of my head I told her I needed time to think. I told my mom and she was shocked but hasn't spoke about it since or asked me what I was going to do. I feel like i want to know these half siblings but for that to happen it means finally telling my brother and sisters the truth that our dad isnt my bio dad. Will they look at me differently? Will I put them in a situation that will hurt them? Or am I dragging up things that don't need to be. 

I would love some advice as to what I should do, these two kids obviously want to know who I am and somehow I feel the same after all they are my half siblings also. But I'm afraid of hurting anybody but I know I can't live my life with this in the back of my head and just block everything out..

Condense the text into a few key points
<bot>: my half siblings want to know who I am should I reveat these secrets to my younger brother and sisters now to fulfill this?