The Heat of the Reincarnated Villainess
Rose was isekaied into the role of the villainess in a game she played as the fiance of crown prince Theo, but when the game is supposed to begin, she and Theo suddenly go into heat and find out they're "the one" for each other. Though Rose likes Theo, she knows that their marriage will lead to the bad end, so when he suggests trying to get their engagement ended, the couple set out on a journey to break up. So far pretty stereotypical, it only stands out as a romance fantasy webtoon because it has smut. I dropped off somewhere between ch 20-30. Trigger warning: dubcon (heat)
The Mating of Elves
In a modern world riddled with dungeons and shared between elves and humans, Pania the elf is a mid-level adventurer who has always looked up to the S-rank elf Naos, so when he's told he can't enter uncleared dungeons alone anymore, she jumps to convince him to take her as his partner. But once inside, they're hit with the reality that Naos is under a lust curse and only Pania's special ability to see the status window lets him know how to temporarily relieve it (through sexy missions). Pania convinces Naos to keep bringing her along as the only one who can help him, but they're both starting to have a hard time keeping their feelings out of it and meanwhile, Naos has a tragic backstory and motivations he doesn't think Pania can accept. I want to say, as far as smut manga for women goes, this one takes the cake. So, let's face it, the plot is just a setup for smut, but that's fine. It's fun, it's got cute moments, and it's actually showing the women what they want to see! The way they show Naos's genuine expressions of desire is way better than a stoic emotionless brick pounding the life out of her, and he's a unique and interesting male lead. 10/10 smut for women, would recommend. Trigger warning: dubcon(via missions), rape.
Plin's Love Juice
Flynn is a fox trying to make some money for himself so he can get by and look for his long lost brother, so he starts selling a vitality enhancing drink at a local business and ends up involved with the CEO, Mr. Hugo Idrohan, who seems to think Flynn is seducing him on purpose since he's so completely his type. Very ridiculous and over the top, to the point of not totally making sense (his brother disappeared leaving nothing but a dried snake penis behind, and he uses that to make his drink even though he believed his brother was a snake. Bro, are you making a drink out of your brother's d*ck??) but it's interesting with decent smut. Trigger warning: noncon, rape, blackmail.
A Sadistic Cop Won't Let Go of His Destined Omega: I'll Teach You How to Have Sex in Heat
Ichika is a romance writer who's editor suggest she goes to a host club to get more experience for her writing, and she's almost date-raped until the police bust in and police officer Jin ends up taking care of her heat, instead. Turns out, they're a fated pair. Not particularly interesting straight omegaverse smut. Trigger warnings: drug(aphrodisiac), dubcon.
My Favorite Idol Might Be in Love with Me!! -I Never Expected to Have Sex with Him-
Kairi has been head over heels for his favorite idol, Rinto, for 3 years now, so imagine his surprise when his father introduces Kairi his new wife and her son, and it turns out Rinto is going to be Kairi's stepbrother! Kairi is desperate to hide his infatuation with Rinto, but not desperate enough as Rinto immediately overhears Kairi jerking off to Rinto, but fortunately for Kairi, Rinto thinks it's hot and wants to lend a hand, starting their physical relationship. This is total self-insert smut, the story is ridiculous, but I did enjoy Rinto's bizarre airheadedness. No trigger warnings.
Trick Turned Into a Threesome With the Tachibana Brothers
Haru has been friends with his neighbors, the brothers Fuyuki and Natsuki, since they were children, and at some point he fell in love with them, but he doesn't want them to know. Now that they're all at college together, they're in a club together, only when everyone falls asleep at a party except two seniors getting it on, Haru gets turned on, and the brothers step in to help him out. Since then, they're getting more and more physical, and even pretending to date in the club, but Haru still doesn't realize that the brothers are more than happy for this all not to be an act. Silly threesome stuff. Trigger warnings: dubcon, voyuerism.
Cigarettes and Chocolate
Alois is a young servant who is head over heels for his much older master, Theodore, but Theodore gently rebuffs him every day. However, when Alois hears Theodore will be getting engaged, he's so distraught he makes a wish in front of a magic fountain, inadvertently summoning Theodore from the past who is shocked to hear his older self is refusing Alois since the young man is exactly his type. Theodore decides to give Alois what he wants and they start having sex, only for present-day Theodore to show up as well, making things a bit more complicated, and a lot sexier. This was clearly made for the smut as the story makes no sense at all, but I didn't mind it. Trigger warning: violence/gore/murder.
The Dungeon Raid is Just a Side Quest
Isca is a half-incubus, half-human dark wizard with an insatiable sex drive who is told to go check out the barrier stones sealing the dungeons, and there he runs into the beautiful priest Sion. Isca and Sion end up breaking the barrier stone and summoning Khalit, a demon currently in the form of a cat, who Isca makes a pact with. As they go forward to get Khalit's power back, Isca learns that the protectors of the dungeons need an incubus like him to have babies, and they all want a piece, and also there may be a dark secret behind the barrier stones. Trigger warning: tentacle rape, rape(unconscious).
Crazy about me
In his past life, Lucius was a tyrant who was so in love with his executioner, he had himself beheaded just so the man would look at him. In this life, Lucius is an absolutely debauched third prince with no power, and the executioner is his faithful guard, Sorin. The story covers Lucius trying to seduce Sorin, Sorin trying not to fall for Lucius for fear of being thrown away, and the evil machinations of Sorin's rapist brothers. Interesting, but has a lot of sensitive content, so beware. Trigger warnings: incest(brothers), kidnapping, rape, gangrape, somnophilia, drug(aphrodisiac), exhibitionism, forced prostitution, torture, murder, attempted suicide.
My Cute, Naughty Rin: Surrendering to Her Obsessed Trainee Next Door