Confusing Feelings Towards Father

Some backstory: My mom was almost a teenage mom. She had me when she was 18. My father was not in the picture for long, and my mother never gave me too many details about that. I figured they split because he was actually younger than her when she got her pregnant, basically a kid. Honestly, I never saw him growing up.

My mother passed away a couple of years ago, but left me with the knowledge of who my father was and how to find him. I finally found the courage to reach out to him a few months ago. Despite the pandemic, we made arrangements to eventually meet. Our first meeting was awkward, but we got along well. He explained to me he was sorry for walking out on me, but he was effectively an immature kid back then, only 15, and panicked at the responsibility. He did contact my mom years later to try to make things right, but she chose to leave him out and raise me herself. So I forgave him.

We started meeting every 2 or 3 weekends, and we hit it off. But it wasn't long before I was hit by strange thought. I found him attractive. Not what one usually thinks of their parents. But with every meeting this thought has been persistent and I kinda have acted on it. Only slightly. I touch my father's arm as if flirting. I can barely gather the courage to do such a thing and then feel ashamed. It doesn't help that he has acknowledged I'm beautiful on a couple of instances. I don't think he did so flirtatiously. Or at least it didn't seem like it. I don't know, but I felt amazing when he did that.

Last time we met, I finally hugged him and we lingered in it for an odd moment. I felt his smell, I think he pressed me against him. I researched genetic sexual attraction and it kinda, sorta makes me feel less guilty about the whole thing. I'm VERY tempted to just forget who he is and go for it... He's basically a stranger to me that I have a very good time with.