Well I was masturbating today and something reminded me of a picture of a guy I saw. And since i know everyone says not to push images away I just stuck with it. But like 5 seconds before ejaculation it turned into me having sex with a girl. But how does this gay fantasy thing work? I do not believe this will be a reoccurring image, being as I would have never remember it if something didn't remind me of it since what reminded me of it was very similar to what I saw. But how does the gay fantasy thing work? Like would I be gay from this or what?
If a random image of a bear had crept into your head at the time, would you be hear asking us if it made you fully into beastiality?
No, you wouldn't be gay from it. The only real clue would be if you were thinking about guy thoughts frequently, perhaps more than straight fantasies, and without the aid of porn (so completely from imagination). But you're not thinking about this anywhere near that frequently, so it's safe to say you're not gay from it.
You shouldn't worry so much, every time I read your threads it's about one quick thought or slightest movement, and then afterwards it turns into something completely straight (guy turned into girl) there's nothing gay about that. You say you're not turned on by thinking of guys, well, if you're not aroused by guys, you're not gay, it's as simple as that.
Sigmund Freud said "Sometimes a cigar is just a cigar." It doesn't always represent a penis in a person's dreams. It may have just been a random image in your mind. If it happens frequently though...