I can see a girl and find her visually attractive and not what to have sex with her.

Is that the same as if I were to see something and it turns me on downstairs but upstairs (in my mind) there's nothing going on?

There's a girl in my running group where like I can run with her and talk to her and stuff and there is absolutely nothing going on mentally - like we can talk for an entire hour and I can tell her all about myself and I don't have any desire to look at her or touch her or anything. Like I could sort of masturbate to the thought of humping her but it was just like masturbation because there weren't any feelings or anything - no attraction or repulsion - nothing going on in my mind what so ever. I don't really know if I would have sex with her in real life - I think I caught her looking into my eyes once but I didn't really mind. According to your definition of attraction, would you say that I am sexually attracted to this girl?

But if I see a visually attractive guy there might also be a level of sexual attraction since I am a heterosexual.

So like you can be aroused downstairs by the guy or the girl but you only want to touch the guy?

So if you seen a guy and thought to yourself that he was good looking that would make you gay?

If I saw a guy and blood moved into my genitals that would make me gay. I don't necessarily have to think anything. It's just an instantaneous involuntary reaction.