Is it normal that i still think about what my cousin and i did

I just want to get people's opinions on this...I know it's weird and I am in no way attracted to my cousin or any family member. But here it is...I'm a 22 year old female and one of my cousins is a 23 year old male. When I was 16 and he was 17, we spent the weekend together with his mom at a hotel. She went to play casino and we couldn't go...obviously cause we were underage. We stayed in the hotel room watching tv and then we started having a pillow fight. One thing led to another and he pinned me against the wall from behind with my hands behind my back. I thought that it was funny but I knew that he was getting turned on. So I stopped playing and got in the bed. We both agreed to go to sleep and he turned the light out. He still kept playing around though. I didn't think anything of it but then he started touching my back and stomach under the covers. He rolled me over and pulled my bra up. My heart was pounding and I was scared...not of him, but scared that we would get caught. I looked down and watched him lick my nipples and I got so turned on that I was shaking. I didn't touch him at all, I just started breathing heavily and turned around with my back facing him. I knew that what we were doing was so wrong. But then he moved closer behind me and kept touching me. I pressed my butt against him just to see if he was hard and I felt that he was really hard...like really hard lol. I pressed closer against him and then he moved his hand down to my shorts, slid them off and tried to move his hand into my panties. That's when I stopped him lol. Then we just went to sleep. But he tried to take my shirt off again in the morning while my aunt was in the next room! And when we went to the fair, he told me that my nipples tasted good. I laughed so hard because he was serious...and I just told him that we couldn't ever do that again. And we never talked about it since. But I never forgot it...and sometimes I stil replay it in my head. Is this wrong? If we weren't cousins, I probably would have been all over him that night because I was so turned on.