No quite...
You see... the basic core is the same for most guys ( more girls for him = YEY! ) But its the leefs of the tree that makes it different...

For instance, myself, i dont have any sort of desire or "need" to see or be with more than one girl at the same time (and i have!) but if it happens, i wouldnt be stupid to say "meh... i dont wanna." ...

Plus, we like boobies, we're guys, we're males... 2 girls just means 2 more of everything, how can that not be great!?

It sure can be spoiled when you gals go putting fingers were they shouldnt be allowed in...... but its not like we dont "repay" y'all for that right after...

So, that's the "lesbian factor"...
now, "gay guy" factor? We cant really care as much for seduction and that stuff.. we're guys, if guys meet up with other guys, they know what they want... so is just more like "you want it, i want it... why the hell not?" and "BAM" Gay Buttsecks

I think when it comes to multiples in a relationship you just have to be careful with the emotional standpoints. You make the point that guys wouldn't care much for the seduction part, but in a threesome involving two females and a male, depending on the make-up of the group (a couple and a random female) you've got to be careful with the emotional side. Worst thing for you if your girlfriend doesn't enjoy it as much as you do and the random female falls in love with you because you're such a hott luvver.

I can admit when girls look pretty, but then the jealousy usually takes over pretty fast.

XD

He doesn't want to be with the other woman (he says that I'm plenty for him); he just thinks that it would be hot to watch me making love to another woman. Considering the popularity of lesbian-based pornography, I figured that it was a pretty typical heterosexual male fantasy.

And therein lies my whole problem with making love to another woman. My partner doesn't want to do anything other than watch; however, I have a very difficult time doing anything sexual with someone if it is just a casual encounter. If I don't care about the person, I just can't achieve a level of arousal that would allow me to complete the act, much less enjoy it. I do have a couple of attractive female friends with whom I could do such a thing if I were properly uninhibited, though. ("Thank you, Roofie Colada!")

Doesn't Fifth have a lotta these? Last I heard, he was out drinking with David Bowie, though.

Ok, let me be Blunt yet Respectfull... let me be Bluntectfull with you here...

Never trusts a guy that says he just wanna watch... we cant be trusted with stuff like that...
Its like giving us guns and explosives and beliving in us when we say "Im just gonna hold it!"

No... we're going to wait untill you're not looking to Hold the pin of the Graneade with our teeth and flail the gun in the air while pretending to yell in whisper "You never take me alive you pigs!!" ...

If its not your thing, then its not yoru thing, period. BUT if you have a curiosity, you need first to think about that, to feel confortable with the idea ( Rai just said a great reason for that )

Certain things are really complex to pulloff ... Menage is certainly one of the top in that list.
Hell... just tell him that you have a curiosity of being with him AND another guy at the same time.. see how he responds when the tables are turned...

On e of the things of being "gay or not" is that you need to know yourself enough to know the dfference between a fantasy, a curiosity and a preference