you sure you measured right? that's not even an average size for an adult male...meaning you would be bigger. and no, if she is going to try to force you into it by threatening to break up, she doesn't deserve you. she is just using you and won't stay with you if she is already acting like that at a younger age. i say wait until you are with someone that you really want to be with, believe they feel the same way about you, and try to make it something special. i didn't even give my first bj until i was like...i dunno, about 16. just be careful about who you let handle your penis (especially when it involves mouth---teeth, ouch!) and make sure they are clean. there are some places you can go to and get tested. i say before you and someone else decide to get intimate you should both get tested. you don't want to die young just because you wanted to get off, do you?