LOL both BuckSlayer , and Nate had good arguements.

If you were like bro/sis that is jsut wierd to date her if ur that friendly, and if she feels the same , she will think its a lil wierd. But just tell her how u feel , dont do it on the phone , online , or by having a middle man talk , suck it up and do it urself , from personal experience girls like it more when u show ur true colors face to face. Hope it helped, jsut go for her.