i think i must have explained myself a little badly here. I've never been attracted to a man in anyway, except to be fucked by one. The thought of kissing a man is a real turn off for me, and I dont find any men good looking at all - this is why I am so confused about my situation.
Well, that’s kinda the definition of being attracted to a man. You want to have sex with one. Let’s look at what you originally posted. To wit:
…I find the idea of being fucked by a man extremely sexy, the same goes for giving a man a blowjob and wanking one off. But what seems to trouble me is the fact that once I have cum, these desires quickly fade away and I become a typical 'straight' man again…
Not only that, but you’ve gone so far that you’ve procured the means to simulate having sex with a man. There’s nothing wrong with that. But there’s nothing “
typically straight,” about it. Straight guys, even ones who’ve had a passing curiosity never get that motivated. They don’t really want to have sex with men, it’s just a curiosity – easily ignored. They don’t come in here asking if they’re gay. They don’t have to. They don’t have the feelings you do.
Kissing is about intimacy, and I hate to tell you this, but guys in the closet or in denial will fuck you, but they won’t kiss you. That’s extremely common. When you think with your dick, your body says one thing. After you get off, your brain says another. That’s pretty much standard denial.
Which is what people in here are trying to tell you, it’s not uncommon at all for guys just coming to terms with their sexuality to say exactly what you’re saying. In fact, the syndrome is as old as time.
I have been watching lots of bisexual and cuckold porn recently, and I'm beginning to think that it may just be the whole humiliation thing that I like. I'm really confused about all of this.
It’s also extremely common for guys who haven’t come to terms with their sexuality to have lots of power dynamics in their fantasies. Hell even a lot of gay men still have those. Why? I suspect that if you think of gay as being taboo or somehow bad, that attitude gets caught up in your cock wanting a man.
oh and to G-Lexington, i dont mean that when i cum i change from "camp" to "straight". I meant that once I've cum, the thought of having sex or doing anything with a man doesnt appeal to me at all, and in some cases disgusts me - that is until I feel really horny again haha.
It doesn’t appeal to you at all because you did it, or fantasized about it, and now your libido is satisfied and your head is back in control, and you have to feel guilty, or justify it – until the next time you get horny enough to shut down the dissonance.
Your body wants one thing; your mind doesn’t want to admit it. Denial.
There’s nothing wrong with how you feel or what you want. You’re perfectly normal. Nothing you’ve said is out there or perverse. Just give yourself time to work through whatever it is that’s in your head – don’t stress. Yes, you’re either bi or gay and there’s nothing wrong with being either. Whichever you turn out to be, you’re not a straight guy, typical or otherwise, AND that’s
JUST FINE! Welcome to Wonderland, Alice.
Now, DON’T cheat on, lie, or string along your girlfriend. She has a right to know where you stand, so when you figure it out, either let her go, or tell her first. There IS something wrong with being a user/abuser.
Everything else is optional. 
