I created a thread somewhat similar to this a few months back:
A Lot Of 90-100% Str8 Guys Here Are Down To At Least Get A M/m Bj. How’d That Happen?
This subject has really fascinated me for a long time, in part, because it's so complicated. I think the people who say that the guys who get blown are necessarily bi or gay have a tremendously simplistic view of the world, same thing for the ones who say that it's not that common. Is it common? I'm not sure, and I've been looking at this for a long time, so someone just casually telling us all the "reality" of things is more than a bit egotistical.
Sexuality is profoundly complicated, socially and neurologically. Straight lines, just like in the rest of nature, seem few and far in between. The more intelligent and social a species, typically the more blurred the lines tend to become. Even in species where sexual activity is for reproductive purposes only, and only occurs at certain pints in the year, there's blurred lines. But, I find it quite ironic that blurred lines would have to be pointed out to the 100% straight guys on this site, a site entirely devoted to dicks and male sexuality. Anyone who would say that, of course, a guy can be 100% straight and still spend a fair bit of time considering the equipment of other men but not also be prepared to say that a guy could accept a BJ from another guy and be straight has some logical issues going on. Either both activities are at least somewhat bi, or the possibility exists for neither of them to be. For that matter, I'd argue that the former is more indicative of bi tendencies than the latter because the former requires some kind of at least latent attraction and admiration, whereas the latter requires none (just as one is probably not attracted to a Fleshlight).
Is it common? I'm not sure, but by measure of all the threads about this kind of thing on just about every platform out there, and their popularity, this would tend to make me think that it is. Other reasons why I'd think that is the prevalence of such activity, either overt or covert, throughout history. In every society where there was no social prohibition against it, it happened pretty constantly. Or is the argument that ancient Greece, Rome, the Americas, etc. were somehow genetically different from us or that the guys were getting BJs as a fashion statement and didn't really enjoy them? Another reason was Craiglist where, due to its convenience and popularity, every small town in America had hundreds of ads from guys looking to get blown. Another reason would be the endless line of gloryholes and cruise areas that I saw growing up in the 80's. Somebody was using them, and it didn't seem to be the gay community - at least the guys getting the blowies. I used to live by one and, Jesus, that place was active after work and on the weekends. I was then that I knew that either getting blown by guys didn't make you gay, or that there was one hell of a lot more gay and bi guys out there than society would ever admit.
Personally, I haven't tried it, yet, but I think I'm going to. It looks convenient and even fun. It's been my experience that most guys prefer to spend more of their time around other men than around women. We're different creatures. Women are great, but they can also be exhausting. Living in the moment and the attitude of, "it is what it is" are not things that define the lives of most women. Everything bleeds into everything else. Everything is complicated. Guys, on the other hand, are pretty simple creatures. We're more "fun". If I knew of a guy who was just one of the boys but who also likes to suck dick? Yes, please! I'd for fuck sure give it a shot. If I don't have to see him naked or really interact with him physically other than his head in my lap, I'm pretty sure I can deal with what's happening. I'd guess that I'd have to block it out at first, but if there was a sense of humor to the whole thing, I'm sure I'd adjust quickly. There's even a physical comfort around other guys that many or most of us feel that we don't feel around women. I'm in reasonably good shape, and in a locker room I'm fine being naked because guys don't really care, nor do I particularly care about their observations even if they were the judgemental type, but if I had to parade through a group of women? I'd be embarrassed as hell. Even in my prime I was always apprehensive about what women thought about my body and my cock, but guys? I grew up playing sports, so I'm over it. Guys usually aren't all judgy about shit. I think this is part of the reason it's apparently SO much easier to get a BJ from a guy than a girl. No one expects you to be perfect or on your best behavior.
The fact of the matter is that the sex drive of men usually is quite a bit more powerful than that of women throughout life, and this does nothing but intensify once you've hit your 40's and 50's, sometimes younger. A woman's libido often or usually drops off and you're left with your dick in your hand, literally. So what are you to do? Beat off for the rest of your life? Prostitutes are expensive and riddled with disease, and an affair, even if you can find a woman who's happy to have you, tends to bring complications galore. So if you know a guy who'll take care of your needs and have the whole thing just be a light, friendly interaction? I think that would be nice.