Yona Yona, Amaku
When Roma, a male prostitute, meets his new stepbrother and roommate Sharaku, they seem to be opposites and don't hit it off. But later that night, Roma goes to meet a customer and finds Sharaku, who is perfectly willing to have Roma do his job. After that, things seem surprisingly normal between them, but then Sharaku suggests Roma take him as his exclusive customer. Sharaku is getting a bit clingier, and he needs to use his words to solve this one. Quick and not heavy on the story. Trigger warnings: sex work, incest themes (stepbrothers).
Antimoral Omegaverse
Kei(omega) knew from the moment he met his new stepbrother Kouki(alpha) that they were fated mates. Kei tried to hide it for years, even telling Kouki he was a beta, but when his meds stop working while his parents are away, the two wind up getting swept up in a passion that leaves them unable to let go of each other. The story for this one is fine, neither of the leads are standout, but the mom is insane. They act like she's redeemed at the end for suddenly deciding she does actually care about Kei when she's completely neglected him and actively verbally abused him this entire time. They really needed to spend more time on her character if they wanted to go for the happy family ending. Trigger warning: incest themes (stepbrothers), child abuse.
My Big Brother's is Small Yet So Sensitive
Akito loves his little stepbrother Iku, but Iku has been distant from him ever since middle school when he suddenly shot up in height. Now, Akito is feeling inferior about the size of his dick, so he buys a cream to make it bigger, but it backfires, and Iku ends up coming to help him out. It's awkward, but somehow, their relationship seems much better after, leaving Akito unsure how to proceed. Basically just a pseudo-incest smut story. Trigger warnings: incest themes, dubcon.
Netsuai (NAONO Bohra)
Ch.1-3 - Kazuki is the black sheep of his powerful family, so he set out to live on his own. Unfortunately, he was quickly found by his stepbrother Souya, who he has a past with, and Souya wants to live together and won't take no for an answer. Trigger warnings: incest themes (stepbrother), rape, child abuse, stalker, violence. Ch.4-5 -Kaneshiro Jou was dumped by his longtime boyfriend who was seeing another man when he died, but he didn't mind since he didn't have much to live for. Unfortunately for him, God decided he needed to learn the value of life and sent him back, except he's very young now, and the only person who seems to have noticed this change is his subordinate, Arakawa Takami, who's had a crush on Jou for a long time. Trigger warning: cheating.
Hidamari Starlight