What is the stumbling block? You're attracted to your sister's friend, not your sister. People date friends of siblings all the time. Sometimes, they even marry them. Is there a serious age-difference problem here? If your sister's friend is inappropriately young, then tell no one and wait for her to grow up. If you are having inappropriate sexual thoughts often, you may wish to seek confidential counseling, especially if you think you will not be able to control yourself and may act upon those feelings.
you just get close to her and when you are alone ask her questions like "do you think i should date a girl like..."but ask her questions that describe her and if shes says yes to all the questions then tell her how you feel
Tell her "I love you"
you can tell it to her personally or if you're to shy, you can let your bestfriend tell it. :)
Tell your friend that you like her
just be honest with your feelings or tell your friend first and hear what she has to say
Why can't you just tell her? Your best friend should support you and your sister and be happy for you to be happy.
Your crazy...and he's your BEST friend! Hell no.
Tell your boyfriend that they love you then hopefully they will step down a step on the love scale.
Tell him you are not interested in him, and if you were, you would not see him, out of love and loyalty for your best friend.
It means they just want to be friends for ever, and they can tell you anything and turn to you for anything
talk to your best friend and tell them how you feel. if they are truly your friend then they shouldn't care
you just say look I'm not interested in you but would still like to be friends
This is a heart breaking... Tell her, you love her so much and I'll think of you also care for you. You're the best sister i ever have. I love you very much^^