I am just curious about this. I am totally straight, and simply enjoy watching cum shots. I like to see my own videos as well as those of others. I like the anticipation as to when the actual shot will take place, and how it will be handled.
Now to the point. Erection and ejaculation are the only sexual activities that cannot be faked. Moaning women, supposedly reaching orgasm can be real of fake, and there is no way to tell in a video.Women squirting, although an interesting thought, has no physiological basis. The only thing they have to squirt is urine.
With that in mind, I believe it is rare for a straight non-swinging man to have ever seen another man erect and ejaculating in person (okay, maybe in a circle jerk.)
Women may have seen an other woman's most obvious arousal display (stiff nipples), in a non sexual setting (cold water), but given the state of modesty of most young girls and women, I suspect this is not all that common.
So here is my question...If you have seen another man with and erection and/or ejaculating, what were the circumstances, and how did you handle it?

All participants are at least 18 years of age.