That's just a pretty normal first born/last born sibling dynamics. My husband felt like that with his little sister. I felt like that with my little brother. My daughter (and I definitely wanted a girl) feels like that with her brothers, and to a lesser degree, her sister. Some siblings keep that thing going forever. Some let it go eventually.Well, um, they apparently wanted a boy, and, um, I was a second child (so they relaxed on me). Therefore I was allowed a little bit more. Well, I suppose, in her eyes, a lot more. Worse yet, I was without restraints she had, and would take it all and ask for more, whereas she would be too shy and modest to ask same things? As a child, I had no problem nagging for money, for ice cream or gum or soda or what not. What's worse, I was persistent and pretty much undeterred by initial request denials. I'd keep asking for something and eventually I got what I wanted, even if only to get rid of me, or because I was favorite. For instance, we had an old bike that was broken and no one used, and it just sat there. I'm sure she asked dad to fix it few times, but he probably was too busy and forgot all the time. It did not matter to me, since I didn't know how to ride it. However, one summer vacation, I learned to ride a bicycle. When I came back from vacation and saw that "hey, we got a broken bicycle" I nagged dad daily, sometimes twice a day to fix it. He would come home and hear "Have you fixed the bike yet?" He tried to stay strong, but after three months he was annoyed enough to fix it. I wonder how she felt when the bike got fixed for me, but not her. Whatever the case, I'm pretty sure that all this has had some impact on her, her who would never ask for money in the first place or much less nag for something.