Sorry to jump into the fray here but we can please differentiate between comics and superhero comics. While I totally respect, even somewhat agree with your point regading mainstream superhero comics, I certainly don't regarding comics in general - which as a medium should be as diverse and cater to as many different audiences as films, television or novels.
The whole comics=superheroes thing really bugs the hell out of me.
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I don't want sex in comics.
I recently read Stuck Rubber Baby by Howard Cruse. An interesting coming of age story dealing with LBGT themes as well as the Civil Rights era.
I recently finished Faithless by Brian Azzarello and Maria Llovet. I guess the best way to describe it is kind of an erotic supernatural love story? An artist who seems to have some sort of otherworldly abilities falls in love with a strange woman and then the woman's weird father starts showing up. That's all I can say without giving too much away. The tagline says "An erotic depiction of faith, sex, and the devil in the tradition of the divine comedy."
There's a fair amount of nudity but it doesn't feel like porn ( at least not like raunchy modern stuff). It almost feels like a 70's art movie or something.
Why Does Sexuality Matter in X-Men Comics?
I hate the notion in most fictional works that the strongest relationship between two characters has to be romantic, especially when they're more compatible as friends.
december 21st has passed where are my superpowers?
I recently read Vampirella: Trial of the Soul by Bill Willingham. The story concerns the titular character being judged to determine if she has a soul and is observed by a man named John. He does so under the guise of entering a relationship with her and when she finds out about it she accuses him of only faking sexual interest in her to get close to her and he awkwardly tries to assure her she was good in bed.
I bring this up because it's not often in comics you see male characters using sex as part of their plan and it does seem that John cared for her in some way.
Originally published by Marvel in the 80's, Starstruck started as a stage play written by Elaine Lee. It's basically a campy sci-fi romp. While not explicit, sexuality plays a significant part in the series. A few of the characters are coded LGBT and the dialogue is full of double entendres. Plus man and female pleasure droids are a thing.
Far from being porn ( if this were a movie it'd be PG-13), it is pretty sex positive and funny on purpose.