I'm 16 years old (my 17th birthday's in a month) and my girlfriend is 3 months younger than I am. We've been dating for 4 months now and she's not willing to actually do anything with me. I'm not talking about sex yet, as I realize how sensitive that issue is, but about simpler stuff like going down on me (I'll be more than glad to return the favor) etc. I'm her first boyfriend and she's my first serious girlfriend, so I do understand her, but nevertheless I'm a guy and those cravings are beyond my control. I love her and I really don't want to break up with her, but her lack of interest in that area is nonetheless troubling and sometimes even sparks a fight (when testosterone seizes control over me). Any advice you can offer will be happily accepted.