Straight guys don't find it hot to watch guys jerk off and cum, do they...?

So it's more of an empathy thing when I enjoy seeing a guy cum?

That would be part in parcel with being straight
Why not just find a gay man that does it for you?
I never understood what the thing with gay men trying to get with straight men.
The moment they get with you it comes to light that they are gay
Is it some kind of a twist on virginity fetish?

No.

Duderino....

This...

To answer your question, gay men are often seen as effeminate. Gay men usually want manly men, and those are usually straight.

That being said, in my OP post, I meant it from my own perspective. Like, "Am I really straight if I like to see guys get off?". I can see why you interpreted it that way though.

I heard this may be reason why traps are so popular nowadays - chick having dick makes it easier for male viewer empathize.

From that position I would ask "is it a natural urge or a conditioned response?"
Fetishes can be developed by combining natural sexual pleasure with a secondary stimuli
For me, the smell of some types of hand lotions gets me aroused because that's all I had to work with when I was a teen
I believe homosexuality is in part a conditioned thing
None of this is morality judgement, just take a critical look at where the desire comes from

Funny you should mention that.
I remember when I was like, 10, before I really understood female anatomy. I was drawing my own porn. I understood that I liked boobs, so I gave her boobs, but I didn't know what a vagina was, so I just gave her a dick and made her pee, and that was a good enough for me.

It could very well be conditioned. I don't know.
There's a little more to it than I've let on so far, but I've also noticed that I really like it when guys (or girls) tease me online, or tell me how they'd fuck me, etc, when neither of us can see each other. (that's not why I made this post, I just wanted to get this shit off my chest)

I find it very erotic watching a penis ejaculate and I feel an urge to put my mouth on it. But I can't with 100% honesty say that I have always felt that way.

Give it 90 days without looking at erotic material or self stimulating
Keep a journal with dates and times of when you are aroused and whet aroused you just a brief one or two words and don't go back and read until the end of the 90 days
That'll give your sexuality a chance to "reset to factory settings" somewhat
The just evaluate what you want and go from there
Most people think of their sexuality in absolutes but that's not really the case
For God's sake, don't let other people push you into sexual behavior you aren't comfortable with
You might have something that's not exactly straight in your system but not be gay otherwise

I'll be real. I don't think I can do 90 days. I can do 90 days without erotic material, but not without self-stimulating.

But I'll try the nofap thing at least for a bit. I don't feel anyone's pushing me into anything.
I do like the journal idea.

When I said "self stimulating" I meant more than just not jerking
It includes all behavior you engage in for sexual purposes
90 days isn't that big of a deal in the end and remember why you are doing it
Once you get a little bit of a handle on who you are, then you can head in the direction you want
In the end, it's just holding off on a little pleasure now to find real happiness
Godspeed and may you find your true self