ok i have i huge hard on for my sisters best friend,,she has a boyfriend but im not sure if its that seruios. so the other day im in my room and i walk out past my sisters room and her friend is standing there in her underwear chaning, i got good look and she dint seem to mind i just kinda walked past and got a good look. but im not sure what i should do, shes realy hot but i dont know it would just be wierd to do anything about it,plus im realy shy. and dont realy know her. and want to know if anybody has any advice. i just dont know if shes not into me it would be realy uncomfortable and then might acfect her and my sisters friendship.