Where My Sexual Desires Came From, I Think

So for the longest time, ever since I was a kid, I have been obsessed with sex. Watching porn. Masterbating. I went sex crazy when I was young like 13 or 14. I had a huge panties obsession. I had always been straight and into girls until I started to explore the other side and I became curious. All of a sudden I realized that I kinda like....dick. I like cum. I like seeing it come out. Precum has always fascinated me. Like what is it? Well I think I found out where my desire comes from and it may sound a little fucked up. I have this memory that I buried forever and I'm not sure if it's real but I believe it is. My dad was a weird guy. And when I was a kid I thought what he did was considered normal. I remember one time, we were sitting in his car and he pulled out his dick and started masterbating in front of me. I stared at it and he told me to grab it. So I did. Then I slowly jerked him off. He moaned a little. And then he started getting wet on the top. I was maybe 8 or 9. I can't remember. He had a big dick from what I could remember. I remember seeing stuff ooze out eventually. We did this a lot and I never thought anything of it. I thought we were connecting. When I was about 10, my dad separated from my mom and then he died when I was 18. But if I think real hard, I can still see the car. What he was wearing. Him pulling it out. Cumming. I think that's where my desire stems from. Idk. It wasn't like traumatic for me or anything. Just odd. I never told anyone.