Seisansei no takai futari no seisansei no hikui seikatsu - Hypnosis Mic dj
Doppo and Hifumi were high school sweethearts, but Doppo swiftly broke it off when they learned they were both omegas. Years later, Doppo is a salaryman and Hifumi is a host, and they're still friends, but that gets complicated when they experience each others' heats for the first time. An interesting read even for someone outside of this fandom, and one of the only omega x omega setups I've read. Trigger warning: mention of sexual harassment.
Hello Morning Star
I've Reincarnated as the Villainess, but the Stubborn Crown Prince I Was Supposed to Lose Is All Over Me!!
Isabella isekaied into a dating sim as the villainess, and despite her best efforts, the story followed the villainess exile route...wop wop. While attempting to go into hiding until her dad can figure things out, Isabella is kidnapped and sold into sex slavery, and soon her first night is purchased by a masked man looking to get some experience in before his wedding. But what Isabella doesn't realize is that the masked man is obviously her ex, the prince (Samuel) who jilted her, and for some reason, he doesn't recognize Isabella either, leading the two of them to start a relationship again, just a little too late and a lot more risque. A tired trope with nothing in particular to distinguish it, but read if that's what you're looking for. Trigger warnings: cheating (implied), sex trafficking, sex work.
Twilight Cure Important
Ryo is a bartender who wards off unwanted advances by saying he's "dried up," and can't get it up. His friend from university, Umezaki, is a total player who comes to the bar to show off his new conquest every night, until one day he frantically comes to Ryo saying he can't get it up! Ryo is wary of getting involved with Umezaki again after they had a bad breakup in university, but he just can't say no... A stupid misunderstanding, but otherwise pretty good plot and interesting characters. No trigger warnings.
Unmei Sugite Tsugaemasen
Nagina and Sora are ex boyfriends who are dramatically reunited when they accidentally move in together. Nagina broke Sora's heart, so Sora demands revenge by playing withe Sora. Meanwhile, Sora actually broke up with Nagina because his overwhelming attraction to Nagina was too much to handle, so he says he'll do anything except penetration! Trigger warning: dubcon
Sweet Delusions Of Love With My Childhood Friend
Kanade is an overworked office worker who slips and falls on her way home, only to wake up to her high school ex, Tatsumi, looking over her at the hospital. If that wasn't weird enough, she gets home to find her mother has given him a key and he'll be staying at her place while she recovers. He starts to get touchy feely, and Kanade thinks maybe it wouldn't be so bad to lose her virginity in a no strings attached night with her ex. Except, he deosn't seem to think he's her ex at all? Gotta admit, they've got me on the hook so far. Even though Tatsumi seems pretty scummy, I'm so baffled by what he thinks is going on, I have to read more. Trigger warnings: noncon (somnophilia), dubcon.
Wakeari Omega wa Nige no Itte
Arata and Mahiro Trigger warning: sex work, dubcon (heat).
Loss Time ni Hanamuke o