Jesus: This movie is very low quality. Ray Bob: Don't look that bad to me. Jesus: There's no story. Bucky: It's a fuck movie. I don't watch a fuck movie for the story. I watch a fuck movie to see fuckin'. C.W.: I got to side with Jesus on this one. I personally appreciate an attempt at telling a story. When I care more about the characters, I care more about the fuckin'.
Any Pornography where the sexual stuff is not the only point to it. Sure, the writer was probably typing one-handed at some point, but it has a plot that isn’t merely an excuse for having sex on screen. Bonus points if the sex is actually plausibly worked into said plot or used for characterization.
In some cases, pornos were once made with plotlines so that they could be considered “art” and thus protected from the laws against indecency. A more tolerant public, being in combination with the explosion of the internet allowing for easy distribution, the overwhelmingly Porn Without Plot porn world we have today, was not infringed. That said, even today, there are porn films with intriguing if not all that well-developed plots, and at least some porn stars are serious albeit often not terribly talented actors.
And there are exceptions to every rule. Cafe Flesh, a 1982 sci-fi porn film has been recognized as a bona fide SF classic. And several more recent porn films, particularly of the "parody" genre, have been considered high-enough quality in terms of acting, plot and production value that they have been successfully released in R-rated or even PG-rated edits with sexual content either reduced or all but eliminated (examples include Pirates and Star Wars XXX).
More importantly, as the above quote notes, the really smart creators understand that if you create characters whom you care about, then the sexual content depicted with them is usually much more satisfying beyond mere titillation. Furthermore, as the stories with those characters progress with this artistic integrity in mind, the real interest for the reader will be not how bizarre the sex gets, but how the different characters get along with their differing tastes and points of view.
A lot of Eroge can be described as this. Even though a lot of them stick close to their tropes, especially female archetypes with the Harem Genre games, remember, tropes don't have to be bad. There are plenty of comedy works, but also a fair share of drama and romance. Some are better than others, and a few are considerably better than most. However, some people have a habit of grouping Porn With Plot with hentai and calling both of them the same thing, even if the "porn" amounts to maybe one or two raunchier scenes hidden amidst hours of non-sexual gameplay.
Contrast, of course, Porn Without Plot. Compare It's Not Porn, It's Art. See also Fanservice, which is when an otherwise clean work includes Fetish elements to attract an audience.
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Anime & Manga
This trope is so popular among manga that it has its own category at Manga Updates. And indeed, don't be surprised if a title among them gets mentioned down below.
A considerable number of (although definitely not all) Yaoi series, in part so there's room for the necessary amounts of angst.
Coyote. It's a non-canon prequel to Hellsing that involves La Résistance, Pip Bernadotte's backstory, foxy snipers, Those Wacky Nazis, and an Arab boy with dual handguns. You could crop out all the sex and it still constitutes a story, if not a compelling one.
Haru wo Daiteita's plot is based on two male Adult Video actors attempting to break into mainstream acting. They actually have some success, in spite of the paparazzi, and back stabbing actors.
Futari Ecchi: Buy it for the hot naked girls. Read it for the developing marital relationship and interesting factoids about love and sex.
The Ragnarok Online series of doujin by the circle D.L. Action. It revolves around the developing love between an unnamed Acolyte and a Swordswoman.
My Lovely Ghost Kana is quite explicit, but the story is so heartwarming that the sex scenes will be only half the reason you like it.
Yamatogawa is an artist and author of a number of one-shot and short series Hentai manga that could be considered Porn with Plot because of the ridiculous quantity of explicit sex. Except they all have legitimate and well-written stories and many are flat-out hilarious. Plus the art is really very good.
Yuria 100 Shiki is about a Dutch Wife (sexbot) named Yuria who runs away from her creator when she realizes why he built her, runs into ordinary college student Shunsuke who takes her in (unaware of her true nature) and lets her stay with him. She is programmed to be a Sex Bot but doesn't really want to be one because as soon as she has sex with someone, she will be programmed to be their sex slave forever. Even so, she still can't stop trying to "seduce" Shunsuke at every opportunity, who uses his none-to-shabby amateur wrestling skills to fend her off so he can remain faithful to his ice queen girlfriend. Meanwhile there is a pretty serious and significant overarching plot involving Yuria's contemplation and struggle against her own programming. Especially funny because, thanks to her programming, Yuria seems to believe any situation (be it treatment of bleeding, getting lost on a ski slope, or even being stranded on a small island) can be resolved with a Deus Sex Machina. Hilarity Ensues.
Nana to Kaoru features bondage, S&M play and titillating Ecchi manga silliness. It also features clichéd but interesting characters who slowly come to terms with the fact that they actively enjoy playing Master/Slave bondage games while still remaining otherwise normal people.
Wet Summer Days. Three lightly connected stories featuring young people falling in love, reclaiming love, or admitting love. A few Tear Jerker moments. A bit of drama. And some quite hot sex scenes. Including one with Death. This itself is a adaption from the eroge Suika, which was created with the intention to be a Tear Jerker in the first place.
Boys Love manga Crimson Spell was described by one reviewer as "a really good fantasy series with lots of sex scenes".
Yasuomi Umetsu's Kite and Mezzo Forte are fairly extreme examples — Mezzo Forte in particular only has two sex scenes between two episodes, both of which are shoehorned in with no real plot impact; one is even All Just a Dream. Both received non-pornographic follow-ups. This is actually not uncommon in anime... a creator will be unable to sell his anime plot as a serious series, but by adding at least two sex scenes can get someone to finance it as a hentai venture. This is especially true of fairly generic "sci-fi horror" stories, where the sexuality could lift right out and the story would be unaltered. There are at least 13 episodes of Mezzo which were once availaible in the US which aren't hentai.
My Balls. Features plenty of nudity and sexual situations... and is also damn hilarious, the porn itself actually leading to a good chunk of the humor and the story.
Hatsu Inu. At least in the first episode. An Ordinary High-School Student manages to score an incredibly hot (if very quietnote In fact, she only talked about two or three times throughout the whole series; most readers initially believed her to be actually mute.) girl. The problem? She has a fetish for toys and it quite hurts on the poor dude's psyche ("Which do you prefer, your toys or me?"). Features gorgeous artwork and at times, hilarious moments.
In Glass No Megami, it's love at first sight for college students Sakura and Kurimiya, but Genki Girl Aya — Kurimiya's classmate since childhood and current Kouhai — sweeps Sakura off his feet before he quite knows what's happening. When Aya ends up falling deeply in love with him, Sakura has to decide what and who he wants the most. It's a fairly standard Love Triangle plot with plenty of steamy sex, but it's well-written with characters who are engaging enough that the ultimate breaking of the triangle is up heart-breaking Tear Jerker.
Drainage City is a very strange hentai about the bizarre inhabitants of a sewer-based society, with lots and lots of bizarre sex involved. It's weird enough that it would be compelling even without the sex, but the sex that does ensue is even more bizarre
Yosuga no Sora does this one not as an OVA but as a midnight time-slot Twelve Episode Anime. Unlike most networks who are shy enough to censor breasts or nipples, this one goes through the whole nine yards with no repercussions whatsoever.
Nakamura Asumiko's Double Mints is a good example. The plot and characters are absolutely fascinating, and there's a little sex sprinkled in.
Maiden Rose (a.k.a. Hyakujitsu No Bara) has a lot of graphic/explicit sex scenes (including some quite brutal rape scenes) which manage to add depth to the main characters. In addition to this, it has one of the most fascinating and convoluted plots to be found in BL manga, which is heavily influenced by war and politics.
Alice in Sexland, despite the rather uninspired title, is a reimagining of the classicAlice's Adventures in Wonderland. Wonderland, in this version, is an afterlife for people who died as a result of sexual and emotional abuse, in which those victims can live in a world of magical people offering Safe, Sane and Consensual sex. The Red Queen becomes a metaphor for Colonialism, as she is another human who died of abuse, but carried on regrets, bringing about a culture of rape.
Words Worth is a 5 part series based onthe rpg, by ELF Corporation. The crux of the plot centers on the destruction of the eponymous monolith, which has sparked a century long war between the tribes of Light and Shadow, who each believe the other is responsible. It also devotes much of its screentime to unraveling the truth behind The Prophecy which was inscribed on itnote "Only one of Light and Shadow may read the words written here and understand their meaning. Thus, the two worlds will be made complete.". It can be thought of as the hentai equivalent of Record of Lodoss War.
End of Summer is a 4 part series that's equal parts Slice of Life and Dating Sim, about Wataru, who dreams of working up the courage to ask Mai to be his girlfriend. As the title implies, he has 'til the end of summer (just two weeks away) to do it. Except Mai is already sorta seeing someone and there's four other girls to contend with, plus, he has to deal with his best friend's love problems. All of which makes it hard for Wataru to concentrate on his own.
The Elven Bride had the titular elf and her human husband struggling to live a happy life together and facing obstacles that interfered with their happiness amongst the gratuitous sex scenes.
The furry comic Omaha the Cat Dancer is a classic example of plot with porn, having evolved from a mostly sex-based comic to a full-fledged soap opera comic with uncensored sex scenes over time. The series did have a tendency to go from a porn comic, to a plot with porn, back to pretty much straight porn at the drop of a hat again.
Ironwood combines a standard fantasy quest storyline with hardcore sex. The writer Bill Willingham even commented that at times it was hard to insert each issue's obligatory sex scene without breaking the flow of the story.
The Piano Tuner, by Ignacio Noe, is a collection of short stories about the sexual misadventures of the eponymous character as he makes house calls. It's really quite hilarious, and reads more like a gag comic with a couple of pages of explicit sex in every story. Witness as he runs through the street naked being chased by a television producer (his latest conquest was the star). "I never did tune that piano..."
Many, many comics from legendary Milo Manara, and as well the great Horacio Altuna. In fact, this appears to be relatively common in the French, and to a lesser extent, Italian comic scenes.
Demi The Demoness by S.S.Crompton. (As any entry here might generate flak, here is a suggested litmus test: If the character has an X-over into a non-porn work — in this case Pantheon — it probably falls under this trope.)
With a title like Sex Criminals it's hardly surprising the comic features uncensored sex, but it also has a surprisingly complex plot about two people who discover they can stop time with their orgasms and proceed to use it to commit crimes, along with going into a lot of detail about the female main character's experiences in learning about her sexuality growing up.
The rare fanfic that attempts to combine WAFF with Lemon. Sex is, well, sexier when you write in romance, love, affection and exploration of relationships.
Romance Reports is one of the most famous fanfics the Friendship Is MagicPeriphery Demographic has ever produced, and the majority of reviewers express some degree of pleasant surprise that a "clopfic" can be so powerful and contain such emotional depth. Indeed, while the sex can be removed and still be left with a coherent story, it is a somewhat emptier one.
The Trixieverse books, also from Friendship Is Magic, combine this trope with the WebSerialNovel. The characterisation and plot conflict are typically advanced through sex scenes, though in later books porn becomes more sparse and WAFF more common.
Pen Pals: a My Little Pony: Friendship Is Magic fanfic where Apple Bloom receives a letter from Babs Seed that pretty much says — in a way leaning towards the more "graphic" side — that she has hots for her. Apple Bloom takes it as a joke, and comes up with an idea to respond that she has hots for her too. Soon, Babs sends a reply stating her excitement and an announcement that she'll arrive soon, much to Apple Bloom's horror. From there, Hilarity Ensues. A nice mix of comedy, romance, more serious moments, actual character development and some reasonable amounts of explicit content that isn't forcibly shoehorned into the story. Oh, and yes, it's a mix of incest, lesbians and underage. Might want to stay away from it if you're not into this kind of stuff.
Two Slayers - One Heart is an amazing, and extremely Not Safe for WorkBuffy the Vampire Slayer fic where the porn and the plot are perfect (though the porn becomes rarer throughout the story). It's no longer on Adult Fanfiction.net (link fixed), but a toned-down, no-graphic-sex version is on Fanfiction.net — the link now points there.
Star Trek: The Original Series — Deep Water by Jenna Hilary Sinclair. Also, possibly Surrender by Killashandra, although it's a bit heavier on the porn than the plot.
The NSFW versions of the Love Hina fanfics Loss and Redemption and Aftermath: Loss and Redemption 2. The plot holds up so well without the porn that the author rereleased worksafe versions of the fics, and they still worked. (Although the original versions are still superior, as the sex is used for the purpose of deepening the emotional intensity of the experience, not just titillation.)
There is also the Misfile fan-verse web novel Misfiled Dreams, which has plenty of Lemon scenes, all of which are essential to advancing either the plot or the growing relationship of the two main characters.
While it might scare off potential readers due to its beginning, the Evangelion fic Shinji and Asuka might count for neutralizing said characters' most glaring personality flaws (Shinji becoming more assertive, Asuka backing down when expected) in a believable waynote Due to Gendo drugging Shinji's LCL with testosterone, he gets more aggressive and during one of his arguments with Asuka, shuts her up by raping her (doublecrossing Gendo's plans who expected him to go after Rei instead). Of course, she gets mad over it and decides to not tell Misato but instead take revenge by using Shinji as an outlet for her sexual frustrations, reasoning that as long as he initiates everything, she won't have to take responsibility. He eventually finds out and takes issue with it; problem is, she saw his caring personality and fell in love with him for real. When they finally make peace and get together, they don't have much time to enjoy the other's company due to Asuka getting amnesia from an Angel attack and forgetting everything that happened between them, including the rape. This gives Shinji the opportunity to make a fresh start and win her over via normal means.. Except for the ending, of course.
Ethereum Gladiator is a NSFW example of wonderful blending of plot and sex.
The Death Note AU arc Redeemer manages to balance copious amounts of sex with plots that actually make some kind of sense. Mostly. At the very least, they're long and convoluted enough that you don't notice if they don't.
90% of Doujinshi are explicit (because that sells), and most of them are PWP. Then you get a story like the Neon Genesis Evangelion doujin RE-TAKE, which got a "mainstreamed" re-issue because the main plot (Shinji goes back in time from the beach at movie end and tries to do the "right" thing for the last 1/3 of the series, while Asuka follows and tries to stop him so he won't betray her again) is much more interesting than its handful of sex-scenes that often seem shoehorned in.
From the same studio that made RE-TAKE comes Negimaru, a Mahou Sensei Negima! doujin. It is five chapters total, and by the third the porn very noticeably takes second place to the plot where Chisame is killing herself by whoring herself out for the sake of being the best net idol. Negi ends up getting killed by Chisame as she goes insane, and by the fifth chapter there are only four out of fourty-plus pages with ecchi material. Could also be considered a Dark Fic. It ends happily though, sort of, with Nagi showing up and allowing Chisame to sacrifice her memories of Negi to create a different world where he doesn't die. The entire story is basically a Deconstruction of the typical silly PWP Doujin plot. And then it (possibly) got a Shout-Out, too! Twice!
The Buffy the Vampire Slayer femslash story Militat Omnis Amans (Every Lover is a Warrior), involves Buffy and Willow as an established couple, in an epic adventure where they defend a fantasy world besieged by demons. And frequently have sex with each other (and later four-ways two other women who befriend them in this world).
The Portal fanfiction The Punishment began life on the Kink Meme (and it shows), yet still manages to be an incredibly detailed and believable investigation into just how disorientating - and downright frightening at times - it would be for a machine to suddenly find themselves with a human body. Even the sex itself serves this theme, exploring just how bizarre, problematic and enjoyable the very thought of it is to someone who until recently never knew such things existed. It also helps that Wheatley is even more Adorkable as a human.
The Takotsuboya K-ON Trilogy, a doujinshi series about K-On!. Also an example of a Dark Fic. If anything, it's the stuff surrounding the sex scenes that's more likely to traumatise readers.
Take Me Home is a RWBY fic involving Blake's first time with Adam, as well as future encounters between the two. The sex is used to supplement the re-emerging relationship between the two, yet at the same time provide plenty drama and internal conflicts.
The Great Scott Saga, without the sex, could actually pass for a multi-part episode of the DCAU Justice League if you replaced the rampant sexual escapades for anything else. Most impressive is that each character still feels like themselves despite what's going on in-story. Admittedly, the first part seems incredibly hackneyed, but the plot really picks up from part three on.
Films — Live-Action
Last Tango in Paris. Unlike Midnight Cowboy, whose X rating has since been revised to an R, Tango earns every bit of it's NC-17 designation. It features explicit sex throughout, though none of Oscar-nominated star Marlon Brando.
The Blue Lagoon (1980) features lots of underage nudity and sex. It's also a powerful romance and a very educational examination of human nature that delves into love and marriage, ethics and morality, religion and theology, and sociology. It was based on a well-written novel from a serious author, after all.
David Lynch is fond of this. Blue Velvet contains quasi-consensual BDSM & voyeurism as major themes, but used them as building blocks for a Mind Screw film noir. Mulholland Drive had some pretty hardcore lesbian scenes, but in service to a tragically romantic psychological thriller, not to mention Wild at Heart...
1976's The Opening of Misty Beethoven is a sexually-explicit version of Pygmalion/My Fair Lady. Unlike later porn "parodies", it is intelligent, witty, and made on a reasonable budget; it's also so well-written and -performed that some viewers feel that the explicit sex gets in the way of the story. It cleverly makes use of its explicit nature not only to titillate, but to lead the viewer into drawing uncomfortable conclusions about Eliza Doolittle in the original.
Sort-of similarly, 1975's Eskimo Nell is on the surface the tale of an attempt by a group of schlocky British film-makers to produce a big-screen version of the legendary epic porn comedy poem (featuring an Amazonian heroine who wears down the over-sized manhood of one thug to a thread and then shrugs off his vengeful accomplice's repeated firing of his six-gun up an intimate portion of her anatomy), but in reality is more a genuinely funny and insightful look into British low-budget film-making of the time (leading cast member and writer Michael Armstrong was a real-life veteran of this side of the industry), glossed with some very soft-core sexual shenanigans.
This appears to have been the next wave in the '70s; in 1976 the world saw Alice in Wonderland: An X-Rated Musical Comedy, starring Playboy Playmate cum mainstream actress (now retired) Kristen De Bell. It was produced as a mainstream adult film, and has production values to match: solid (though not particularly memorable) musical numbers, actual choreography and a reasonable attempt at acting on the part of most of the players. In fact, most of the hardcore footage was removed for a broadcast-friendly softcore version. Roger Ebert gave it a favorable review.
In the same way that big summer blockbusters inspire hack moviemakers to make schlocky knockoffs in the hopes that confused grandmothers will buy the wrong one as a Christmas gift, they also inspire pornographies. To complement the Pirates of the Caribbean movies, there came out a movie Pirates XXX (basically, a Pirates of the Caribbean porn). Where it gets hilarious is that it was then edited into a softcore version for sale to cable networks that didn't run hardcore pornography. It is also among the most expensive adult films ever made. And then they made a sequel...
Shortbus and Nine Songs are both borderline cases. They are both critically well regarded, but are marketed around featuring real sex. They both also differ from similar art-house movies that the sex is simply there, and not a way to create more drama.
There is an X-Files porno where Mulder and Scully investigate a murderous cult that reveres Lilith. Aside from the porn, it actually sounds like a real episode of The X-Files. The porn is appropriately titled The Sex Files.
The Show Within a Show of Blake Edwards' S.O.B. is a softcore version. We don't get to see much of the actual sex (since S.O.B. is rated R), but we do (briefly) get to see Julie Andrews' boobiesnote as her character refers to them after being given a sedative to calm her jitters. In-universe, she's doing the show in an attempt to break from her wholesome-girl typecasting; apparently she's basically playing herself.
Alien Sex Files 3: She Alien, starring Jenae Alt, features a woman who is really an advance scout for an Alien Invasion. She sides with the human race after experiencing sex and love. The ending is also pure Visual Effects of Awesome.
The short documentary Hard Fat is a legitimate documentary about the gaining fetish (also known as feederism), the legitimate parts of which are inter-spliced with grade-A Fetish Fuel for those who have said fetish.
In the Realm of the Senses may be one of the most notorious examples of this, although many of the sex scenes are arguably more nightmarish than erotic.
Many porn parodies, especially the Star Trek ones, actually work rather well as parodies.
Captain: (escorting the hot alien chick around the ship) As you can see, the rumors that we just walk through the exact same corridor over and over just to make it look like a bigger ship are completely false.
And sometimes the real movies could learn a thing or two from the porn parodies. This article mentions how the porn version of Wonder Woman's costume looked infinitely better than the version from the failed 2011 TV pilot (aside from being even more Stripperific than normal.) They also mention how depressing it is that the porn studio has beaten the film studio to the punch on both a Justice League and Wonder Woman movies while DC and WB are still trying to get it together.
Emmanuelle and its various sequels and reimaginings like the Emmanuelle in Space and Emmanuelle Through Time series. Emmanuelle in Wonderland is a musical. One film featured the title character trying to help out a poor guy who mistook a one-night-stand for true love and was about to get his heart broken. Another featured the cast having a deep discussion about the portrayal of Vampires Are Sex Gods in the media.
The Dreamers, in which a guy gets into a relationship with a brother-sister duo amidst the 1968 Paris Riots.
Deep in the Valley, where two friends (one a Nice Guy and the other a porn-obsessed pervert) get sent into a porno. It's funny and deconstructs some porn stereotypes. Also, one of the girls in the porno is tired of meaningless sex and wants to experience true love.
Virtual Girl (1998). A man enters virtual reality and has a tryst with a simulated woman. He tries to break off the relationship, but she turns out to be: sentient, a Yandere, and can affect the real world.
Virtual Vegas (2001). A woman creates a virtual reality system for sex with simulated people. Her Corrupt Corporate Executive boss fires her so he can keep the profits for himself, then hires thugs to try to kill her. The woman warns that the device needs to be properly tested before it is marketed, which is proven when one guy who uses it goes into a coma. Also, a guy who uses it gets chewed out by his girlfriend for cheating on her, which he tries to claim that it's not cheating because the women are not real.
Room in Rome, in which a woman from Spain and a woman from Russia meet in Rome and have a one-night stand. The women discuss art, literature, and their lives, but it soon becomes clear that one or both is lying.
The Libertine (1968) is not rated becauase it was made at towards the very end of the Hays-code era but before there was an X rating. It's about a young widow who discovers that her recently deceased husband was cheating on her and filming his escapades. Much of the plot involves her exploring her own sexuality. You are also shown bits and pieces of what her deceased husband did in the form of black-and-white home movies. Edit out the very little full frontal nudity that you see and it would probably get an R rating today.
Wasteland is a surprisingly sad girl-on-girl flick about a young woman, Anna, who tries goes on a trip to reconnect with a girlfriend from high school, Jacky, only to discover that Jacky is bi, and inclined more towards men. They try to rediscover their feelings for each other, but Jacky becomes annoyed and starts demanding to know why Anna's bothering her... at which point Anna reveals that her grandmother is dying, she's lost everyone else in her life, and she fears she's about to end up alone. In the end, they spend the night together, but the next morning, Anna finds out that her grandmother has died...
The Room manages to cross this over with Ikea Erotica, believe it or not. Porn with a very convoluted plot too. Was there really need for the sex scenes to be 5 minutes long? No.
Laurell K Hamilton's Anita Blake Series started as an urban fantasy series and then turned into plot with porn... and then turned into porn... and has apparently started to move back to plot with porn but most fans haven't gone back to check.
Parodied in John Varley's The Golden Globe, set in a Free-Love Future where the audience expects graphic sex scenes in all media, leading to the actor protagonist performing a very... interesting... version of the balcony scene from Shakespeare's Romeo and Juliet.
Jean M. Auel's Earth's Children series, from the second book onwards. Or from halfway through first book if you accept Rape as Drama as porn. Though only one scene was described (possibly two, but the second one didn't last because the man wasn't interested). The Plains Of Passage was really bad for this, though — it had little enough plot to begin with, so to pad it out, there were one or more sex scenes per chapter.
Anything written by J.R. Ward, especially her Black Dagger Brotherhood series; pushes the boundaries emotionally and sexually.
The Journal Entries by Elf Sternberg is a very long series of furry sci-fi stories, ranging from barely fleshed out (though it gets better if you know the characters) to heavy philosophical commentary.
A Fox Tail manages to devote at least 300 pages to a story about a hacker unleashing a hostile AI on the internet, the government's attempts to eliminate and/or recruit him, and the AI in question attempting to kill its creator. Still has quite a bit of gay sex though.
Fifty Shades of Grey: a trilogy of novels about a college student who falls in love with a billionaire. The books are also notorious for describing their BDSM intercourse in great detail. (They're also notorious because more than a few practitioners of BDSM have alleged that the author got Safe, Sane and Consensual quite wrong).
Kushiel's Saga: The titular Kushiel is a noble whore-spy who was born a "perfect sub" in an alternative medieval France. Cue lots of BDSM woven into the plot.
The collective works of Marquis de Sade (of Sadism fame), although they are less Porn with Plot so much as Porn with Continental Individualist Philosophy.
The Longarm series of westerns: a plot that would be right in place in a Zane Grey novel, then explicit sex, then back to the cowboy story. This pattern repeats several times over the course of each novel.
Spike TV used to show "Porn Masterpiece Theater" which consisted of cutting all the sex from porn movies to chop them down to 30 minute short stories.
Forbidden Science, a new show on late night Cinemax that has a very intricate science fiction plot, with lots of (fairly softcore) sex scenes.
Ditto Lingerie, by the same authors and on the same network.
Also, Co-ed Confidential is a college comedy with lots of sex scenes. Also on Cinemax.
Showtime's softcore erotic anthology drama, Bliss. Pick a diversity...any diversity! Bliss has probably covered it.
Short-lived HBO series Tell Me You Love Me epitomized this trope; mainly dealing with the characters' sex lives and crises within those sex lives, each episode had a buttload of sex scenes, with graphic depictions of both female and male genitalia. The sex scenes did serve a purpose, though.
The American verion of Queer as Folk, while soft core, probably didn't have a single episode that was safe for work.
"Behind Locked Doors": A spoiled Lindsay Lohan-esque celebrity struggles to survive when she's sent to prison.
"Bad Medicine": A criminal breaks into a hospital during the night-shift and takes a nurse hostage.
"Something Like Murder": A Trophy Wife has an affair with her female masseuse, and together they plot to kill her husband and take his money.
"Speed Date": A man exaggerates on his online-dating profile, and soon finds himself in over his head when his selected date turns out to be a master assassin on the run from her organization.
"The White Flower": A criminal lives in fear when a fortune teller warns him that a white flower will be the last thing he sees before he dies.
"Girls Gone Dead": An amateur filmmaker convinces a sorority to let him film them doing sexy things.
"Haunted": A film crew investigates a house rumored to be haunted.
"Angel & Demons": A cop goes on the trail of a Serial Killer who targets women, mostly prostitutes.
"Help Me, Rhonda": Thugs break into a house and take the wife hostage, intending to kill her husband, who they have dealings with, when he comes home. Her only hope is the woman she was having an affair with.
"The Clinic": A man comes to the horrifying realization that the medical clinic he is in is really an Organ Theft operation.
"Til Death Do Us Part": After a wild bachelorette party, the bride-to-be wakes up with a dead man in her bed and no memory of the previous night.
"Visions Part 1 and 2": A phony mentalist blackmails several women, the survivors of several previous episodes.
"16 Minutes of Fame": The contestants on a Reality TV show start getting murdered.
"Gun Twisted": A man meets a lovely woman at a shooting range and convinces her to help him rob a bank.
"Trophy Wife": A woman hires an ex-cop to kill her philandering husband.
"Extracurricular Activities": A college professor seduces her student and urges him to murder the dean.
"Killer Instinct": A female assassin is captured and brutally interrogated by mysterious figures.
"Bad Science": A teleportation experiment goes awry when the device connects to a parallel universe.
"Family Business": A Mafia Princess takes over her late father's operations.
"Jail Break": A prison guard from the previous episode "Behind Locked Doors" finds himself dealing with another attractive prisoner.
"Crazy Mary": Mary has been institutionalized for the murder of her husband. She tries to escape, determined to prove she's not insane and bring the real killer to justice.
"One Man's Death": When a man is murdered, his wife and mistress decide to work together to get revenge on the killer.
"Hell Hath No Furies": The lover of a ruthless drug lord is jailed and interrogated. Suddenly, three alluring but incredibly deadly women lay siege to the police station, slaughtering anyone in their path.
"Libra": A woman becomes a masked vigilante and declares war on the mob.
The Erotic Traveler, where an art collector would tell her apprentice erotic tales of each art piece's history. For example, telling about a mask used in BDSM games, or an artist or sculptor having an affair with the model.
Lost Girl uses sex as a crucial plot device; the lead succubus character Bo uses sex as a means of healing after an injection given to take the edge off her need to kill to feed results in her losing her self-healing properties.
Spartacus: Blood and Sand, its prequel, Spartacus: Gods of the Arena, and its sequels, Spartacus: Vengeance and Spartacus: War of the Damned. It's an incredible adaptation of the events around the legendary Gladiator Revolt, with lots of explicit gay, lesbian, bi, and hetero sex scenes.
"Valerie 23": A man gets a Robot Girl as a companion. After they inevitably have sex, she becomes a Yandere after he tries to date his therapist.
"Caught In The Act": A woman (Alyssa Milano) gets possessed by an alien. She seduces men, then consumes them after sex.
"Paradise": The sheriff investigates when old women from a retirement home go missing, and mysterious, beautiful women seduce men, then undergo Rapid Aging.
"Bits of Love": The last survivor of a nuclear war survives in an underground bunker with holograms (including one played by Natasha Henstridge) as companions. He can even interact with them intimately with virtual reality. He soon learns the cost of treating his companions with disrespect.
"The Human Operators": Sentient space ships keep humans as slaves. Two slaves are commanded to mate and breed the next generation of slaves. A rebellion is inevitable.
The Bastard Of Kosigan has several graphic sex scenes, but they are all optional and the story doesn't lose anything without them.
It is worth mentioning that not all Eroge are visual novels; Utawarerumono is a good example of a turn-based strategy game with erotic content, good gameplay and a good plot.
Escu:de has done a few intriguing stories with simple yet fun gameplay. Eiyuu X Maou, about a demon overlord bent on domination of a Humans Are Bastards world. Primaveil Zwei begins as a sailor-senshi/super-sentai parody that becomes progressively more character driven, deconstructive, and original.
The PC-98 game Night Slave had side-scrolling action interspersed with some lesbian bondage.
Monster Girl Quest. Despite the Audience-Alienating Premise (it no longer has a page), it's story is quite deep and engaging, certainly much more so than an average Excuse Plot that you'd normally expect a game of its type to have, delving into topics such as Fantastic Racism, among other things, and even features a bit of humor as well. It's also one of these games where you are supposed to avoid the actual porn for the most part (lose against a monster girl and you get raped, resulting in a Game Over).
Three Sisters Story has a pretty engaging story, and the porn is good. It's only the tedious gameplay that bogs it down.
The eroge by Alcot My Girlfriend Is the President takes this to an interesting level, with the hilarious characters and deeply moving story, most people tend to skip the soft-core sex scenes so they can get on with the plot.
Pretty much any eroge by Type-Moon, especially, Tsukihime and Fate/stay night, to the extent that they made versions without the porn, though the fandom quite likes the hilariousefforts that went into fitting the porn into the story. The two mentioned works provide different sort of examples of this. In Tsukihime, the story is very plot-heavy but more focused on romance than Fate, and thus the sex scenes tend to fit into the plot naturally and tend to be part of it without being the point. In Fate, this trope applies in a sense that the sexual content is such a small part of the game that it could be removed very easily and it would make little to no difference at all. This was done in the PS2 re release and the anime adaptations.
Nitro+ is pretty good at this. Saya no Uta is impossible to forget, even during the H-scenes, that this is a horror story. Demonbane got PS2 port and anime adaption without the porn, and its sequel is mech action game, without porn either.
Katawa Shoujo is a (free, high-quality) visual novel eroge where the romantic and pornographic sections are inseparable from the in-depth characterisation and thoughtful exploration of the lives of teenagers dealing with their disabilities. The sexual scenes can be skipped, but you would miss on important plot and character points.
Tally Road cannot seem to have an explicit sex scene without huge plot consequences. When things get really hot and heavy, there is inevitably some sort of other shoe to drop. It's so Porn with Plot-tastic it has to be intentional. Anathema really deserves special mention due to about the same if not more time being spent on plot as there is on porn and some very extensive world building as well.
♥ (not sure how you pronounce that) is a Furry Comic on FurAffinity. There are plenty of really, really hardcore fetish scenes, but they're handled with surprising amounts of depth. It's hard to find with a search engine, so here. This comic is described as "It WILL offend you at some point. Please let me [the author] know when it does." At the beginning it was just a "fetish of the day", but it really does have an interesting story. Granted, it'd be a lot shorter without all the fetish scenes...
Ménage à 3 has some traits of this trope. But while there are lots of scenes involving sex, it's usually just a single panel or strip played for laughs; people are always walking in on other people having sex and Hilarity Ensues. That doesn't mean there isn't a lot of nudity, as a lot of the characters are naked leading up to and after the numerous sex scenes, to the point where every major character has had at least one (or the attempt at one) sex scene and has been visibly naked. The trope is also discussed by characters Zii and Gary, who agree on preferring porn with plots. In addition, we get glimpses of the past career of Amber, an ex-porn actress whose work seems to have had some plots, if only to support the jokes about it — see, e.g., strip #652 (September 29, 2012, NSFW).
Werewolf series Peter Is the Wolf, to the extent that the main page asks whether you want the PG-13 version or the X-rated version. While the censored version can stand alone as a fairly entertaining read, there is character development lurking in the sex scenes.
Oglaf started out as an attempt to make porn, but degenerated into sex comedy pretty much immediately. It still alternates between sexy and hilarious.
Curvy is this trope, big time, focusing as much on the complicated relationship between Fauna and Anaïs, and the absurdity comedy of the absurd worlds they visit as on the actual sex.
Chimneyspeak features a lot of explicit sexual content, in the midst of a story about an international cast of ne'er-do-wells plotting bloody revenge on each other.
Sunstone, a S/M webcomic. It is a sweet, yet erotic story of two women taking a huge chance on exploring their fantasies with each other (with a hint of evolving into something more). It is well-written, covers the psychology and ideas behind their S/M play, and explores the emotional highs/lows of such a relationship. However, the artist is releasing the series Out of Order, not in chronological order (similar to the broadcast order of the first season of the Haruhi Suzumiya anime).
There's an ongoing series by porn artist Lemonfont about a shapeshifter with an exhibitionism fetish (named, appropriately enough, Shapeshifter) that would be your typical fetish fuel material if it weren't for the fact that the main character and her unseen "boyfriend" are written with enough wit and character depth to qualify for this page.
The Kung Fu Panda webcomic, Better Late Than Never, a sexually explicit fan comic that takes the Ship Tease of Po and Tigress to areas the franchise can't go. The result is an erotic comic story with a touching emotional depth and suspense that feels surprisingly true to the characters as they explore their sexuality that the pair is too personally repressed to admit to themselves at first.
It's Always Time is an Erotic Farce, centered in the Epic traditions and thoroughly steeped in image board culture to boot. Needless to say, the porn present is weird and frequent.
Corruption Of Champions: an online text based flash game is this. While there is certainly no absence of sexual content, with near every single NPC having at least one sex scene (usually more, vendors and enemies included). The game as a whole has a fantasy plot and an ongoing narrative, both overarching and smaller development stories for certain characters.
Tales Of Mu skirted into this territory for roughly half of the first "year" of the story; the sexual content has drastically decreased in the second "year" but still comes up every now and then.
Sex Trek is a porn movie with Expys of the Star Trek: TOS cast getting in on in various ways on the Starship Intercourse. And in between, there is a plot, the exposition of which is laced with awesome double entendres and self-deprecating humor. The first 4 minutes (SFW) are on YouTube. It's actually pretty awesome.
And, last but not least, there are the stories put on actual erotica sites:
Six Times a Day is about a young man who is (falsely) told that he must orgasm six times a day as a medical treatment for lack of energy. It's currently in its 79th part (each part typically contains 5-8 chapters apiece), and is clocking in at over 3 Million words at the moment. So yea - Porn with Plot.
The Wulf Archives were specifically created with this trope in mind. The writer, Anthony Pryor, was repelled at how badly written most of the content in alt.sex.stories and wanted to show you can have sexually explicit stories that are well written. For instance, in the first posted story, "Heart of the Lion," the first major section is a wild Swords and Sorcery version of the famous Battle of Isandlwana.
Melissa 2.0, catering to the Breast Expansion contingent, about a normal-looking MIT student who develops some body-modding technology. She has a lot of fun, but it takes a turn for the worse when the government finds out. Much worse.
Two Dashes of Mid-Summer manages to have considerable plot in relation to it's sex. Somehow, this makes it an even better read.
Online author Al Steiner has written several online novels that feature well-developed characters and intriguing situations in addition to having explicit sex scenes. Some of his better-known stories include Intemperence, which is about the behind-the-scenes life of a fictional 1980s rock band. Doing It All Over, in which an unhappy middle-aged man suddenly finds himself a teenager again with full knowledge of the future. Aftermath, a post-apocalyptic tale that focuses on a community of survivors following Earth being hit by a meteor. And A Perfect World, a science fiction story about a man who is cryogenically frozen following a deadly injury and awakened hundreds of years in the future.
While the "Naked in School" universe originated as Porn Without Plot and has seen plenty of that over the years, there are also a number of authors who've used it as a powerful vehicle for examining teenage romance, angst, and even the nature of celebrity.