Is it normal to want to have sex with my 'sister'?
First off, I would like to just say that I was adopted when I was 3 so I am not related by blood to my 'sister' and that's why I think this is an option for me.
Basically, I am a very lonely kid and I haven't really got many friends and so I've become 'addicted' to lying in order to make friends and try and impress people. I was talking to this girl on snapchat and I really liked her and so I wanted to impress her so she would carry on talking to me. To do this I started a game with her where we had to ask and answer kinky questions with each other, at one point she just asked me what the kinkiest thing I had ever done was and in response I told her that I once had sex in a starbucks toilets with my then girlfriend while she was tied up and blindfolded when in fact I've never even kissed a girl. Anyway, a few of my so called friends found these messages on my phone and started to constantly make jokes about it and it has started to make me feel really insecure.
I started to see my adoption as a way out, as we weren't actually related it isn't incest right? Recently she has started to seem very very sexy to me and I don't know how to go forward from here. Should I just confront her about the situation or should I ask her out on a date like the cinema?
Please be kind this is really putting myself out there.