I have been with my girlfriend for over a year. We have had great sex the past year now it seems I have to beg for it.my girlfriend has had a very active sexual past so it makes me scratch my head when I have to beg I am 20 and she is 26 I can't help but want to have sex I am a young man. I have been faithful to this woman but I can't help but wonder if there is no sex now what will happen if I marry her!? Is this normal and can someone help me?