You are not straight, sorry. Your aversion is the biggest hint, actually.
Some interesting responses, but this takes the cake. I love how you guys say my logic isn't sound, but then immediately throw out labels like no other.
I'm not attracted to guys in any way whatsoever. It really wouldn't matter what the dick was attached to, it could be a trans, a dude, or a hermaphrodite; it seriously does not matter. I do not feel any sexual desire for men at all, hence why it "turns me off" to think of giving a blowjob when I'm not horny.
It's pretty much a case of me being able to suck my own dick, getting tired of the limitations of sucking my own dick (it's pretty strenuous on my back, etc, and being curious of what it's actually like to give a blowjob/wanting to try it. Some of you are really reading way too far into this.
The "hung dick" thing is just preference. I can suck an 8 inch dick (mine) anytime I want, when would I have the chance to try on something bigger? Which is again, what I believe some of you are getting caught up on. I'm only focusing on the dick, I don't care what it's attached to as I have zero interest in men.
It's pretty much an urge that I sometimes get when I'm horny, which immediately vanishes when I'm not horny.