Oh jeez, this turned out way longer than I expected!
On terminology: “Dickgirl” (or perhaps the rhyming “chicks with dicks”) is probably the most precise term to refer to what is being discussed here. I know that I use “androgyny” as well, but that refers to a much wider range of characteristics, some of which have nothing to do with anatomy.
This discussion is mainly inspired by an answer by needs-more-plot about why he enjoys this, reiterated when he describes “vicariously identifying…with the phallus in an image”. Essentially, he seems (based on these posts) to fantasize that the penis that is receiving pleasure is his.
Okay, I get that. But I disagree in terms of my personal preferences as a heterosexual male.
But first, some general commentary about guys being obsessed with penises.
This post highlights this obsession, and I thought it’d be fitting to respond here because it connects with the main subject.
I’ve never been obsessed with penises in the ways teenage boys are stereotypically. I guess the dominance theory is closest to what I’ve thought. The correlation between phallus length and dominance is an interesting point that I’ll bring up later.
Although I’m not obsessed in the stereotypical ways, I absolutely love dickgirls. One of my main pleasures is seeing a woman pleasured. A woman for me isn’t defined by her genitalia. In pornography, the factor on which I mostly rely is the figure (including breasts). So I get off especially to women getting off, you could say. (When I see a woman masturbating, I don’t imagine myself doing anything to her.)
The thing about penises is that I know what a penis feels like (rather obviously), so it’s easy to imagine what a woman with a penis feels. That’s it.
Well, that was it originally. The thing about penis length now comes in when I think about this drawing (clop, of a feral-form futanari Twilight Sparkle, by Boltswift). Her phallus is the same thickness as her hoof (not outlandish, but still pretty big and pushing the boundaries of reasonability). I’ll be honest right now: My main fantasy concerning this depiction is slowly running my tongue along the entire length of her phallus and listening to her moaning and panting… I wouldn’t properly fellate her, though. (Besides, I doubt I could in this case.)
Coming back from saucy to serious, I believe the length attraction isn’t due to “vicarious dominance”; it’s just because there’s more to pleasure.