Is it normal that i fantasize about having sex with old men?

I am 19 yr old girl who (not trying to brag) has competed in quite a few teen pageants as well as done some modeling. I'm considered very attractive and have never had a problem getting guys attention.

I've only had sex with 4 guys so far. 3 of them were my age and the 4th was a 58 yr old guy I know from work. The guys my age were alright but I get so wet thinking about getting a MUCH older guy off. After screwing the 3rd guy my age, I decided that I wanted to try something different. I didn't know what different was until I was sitting at work one day when a customer came in who comes in a lot. His name is John and he is 58. He has hit on me for almost 3 years now at work and I've always enjoyed the attention. But the other day, he needed an estimate on some stuff which I have just learned how to do. Because I was so busy at work and couldn't do it there, he invited me back to his place to work on it there with him. I should point out that he is one of my friend's uncles too.

To make a long story short, we ended up having sex. And after that, I have become so horny thinking about banging old guys. I just wanted to see if other girls my age had the same feelings for guys a lot older than ourselves.