Dude your just begging for trouble asking that on this site....... on the other hand if your into her and she's into you, then go for it. Just be sure to let your friend know that the **** that goes on between you two is between you two.. Also, you can kiss the "tag and release" mentality good bye and also the "what she don't know wont hurt her", and "what happens in vegas, stays in vegas" Also, just be ready to be under constant scrutiny from your friend who will not take too kindly to your staring as some other chics ass, or making comments about some chic, or flirting with some chic... AW **** IT, DONT DO IT. NOT WORTH IT.....
Hot Crazy Matrix - A Man's Guide to Women Hot Crazy Matrix - A Man's Guide to Women [video=youtube;hKWmFWRVLlU]https://www.youtube.com/watch?v=hKWmFWRVLlU[/video] Hope this helps
Not sure about friends sisters but I know sisters friends are usually off limits, and the limitations are put on by the sister. My sister had a friend that I was totally in love with, perfect girl, body, boobs etc. Never told my sister or made a move. Found out from the girl years later that she was totally into me but my sister warned her to keep your grubby hands off. WTF!