Even in my 40s, I can be naturally horny enough that simply thinking about masturbation and the sensations of my body are enough to get me off, even without much if any encounter mental fantasy aspect to speak of. Either pics or videos can also set me off, but there ARE a handful of still images that I've run across over the years that give me an instant raging hard-on as soon as I see them, no matter how many times I've seen them before. Those can be more satisfying than videos. Some are solo women photos, some are straight couples/groups -- a range. I've probably had somewhere well over a hundred orgasms with some of those individual favorite pics over the past 12 or 13 years! And writing this post is making me think I need to fish out that flash drive and have another one...!
I once had a very good friend with whom I swapped naked photos of my wife for the same of his. Then I would look at the photos of his wife's pussy while I masturbated, and it was even better that way because I knew who she was. He did the same, of course, and admitted that it really turned him while masturbating to be looking at my wife's big tits and hairy **** and wishing he could fuck her.
I actually prefer photos over video, and I've enjoyed both for a long time. If I'm just enjoying some solo time, I like quality, large images that capture a real intense moment (or at least seem to, to me). I really like it when the photographer can capture someone masturbating and it just seems there into it deeply, hitting the edge, or climaxing.
Both. I like to look at pics and videos, but im probably 70/30 respectively. I love to watch webcams a lot too. And i love being watched on mine.
I'm visual just like guys are. I like both pics and videos. I prefer videos, but when I don't have time to look for free ones, pics do the trick. I've been spoiled off of porn so now I don't like to just fantasize.
I go through periods where I just use pictures or just videos. I'll stroke to videos for a few weeks then move back to pictures. It's easier to keep both hands free and lubed when using just videos. Tends to keep the mouse clean too.
I prefer not watching anything. I just use my imagination. Maybe once a month i'll look at some pictures or videos.