/u/GridReXX made this comment:

Women don't fantasize about dick. Seriously.

We don't.

We may miss the person the dick is attached to but we aren't that hype on penis.

Men are obsessed with penises. Full stop.

Then /u/goatismycopilot made another interesting comment:

Penises themselves are mostly interesting to men. Women will say complimentary things about dicks to the men they are dating because they know men like to hear it. Other than that dicks in the abstract are not that fascinating specifically because women do not think abstractly about men the way men think about women.

I wonder what that means exactly: "women do not think abstractly about men the way men think about women."

Based on these comments, I think that there's some fundamental difference between how males and females experience sexuality.

I will never know what it is like to be a woman, of course, but it's fascinating for me to hear these descriptions of this alien form of human sexuality.

/u/GridReXX made another interesting comment:

And to answer your question men and women are different.

When I fantasize about women I tend to think about their soft skin and boobs and yes how warm and inviting her 🐱 is. It's more of an active fantasy of me doing onto her.

When I think about men I fantasize about him fucking me. Him overpowering me. Like I know the penis is part of that equation but it's not what I think about it all. I think more about him passionately kissing my neck against the wall. I don't I think about his dick. Maybe gay men focus solely on the dick? I idk.

Then /u/GinSmokeLies made this comment:

I concur. To be honest when I've gone without for a while and I'm really horny, I fantasize more about foreplay and dirty talk than sex itself. Like you said, things like kissing, being pinned down/picked up, hearing him whisper or breathe in my ear etc. All that gets me going way more than "dick in vagina."