Nephew x uncle
-Takatou Shinobu, brother lover, 25 years old.
Living under the same roof are his older brother, Masaki, and nephew, Kazuomi.
Kazuomi is a troublemaker who is suspicious about Shinobu’s familial love for his father, and always bullies Shinobu when Masaki isn’t around. And to top it off, he even does something like that…!
Because they are “family,” there are many feelings they cannot communicate.
And the outcome is...?
The brother of the mc was in love with him and they also had sex
-From RooftoploveBL: While he is supposed to succeed his family's yakuza clan, Tatsumi takes his responsibilities lightly and leads a life of debauchery. In search of someone who can love him, he approaches his friend Shingo, the leader of a group of thugs, in order to satisfy his deepest desires. Even though he is part of his family, Tomomi, Tatsumi's little brother, is on his side and shows him an unconditional love...
cousins
-High school student Kyuta's second cousin is Etsuro, a calligraphy teacher and womanizer who for some reason sexually harasses him as well. One day though Etsuro gets injured while protecting Kyuta, so Kyuta comes to live with and take care of his cousin until the injury heals. Will a closer relationship develop between Kyuta and that “good-for-nothing” Etsuro?
related to: Kono Ore ga Omae Nanka Suki na Wakenai
step brothers/chap 6
-A cat falls in love with a human who once took care of him. Wanting to stay by the young man's side, he agrees to a deal that would allow him to take human form--except in the eyes of the one he has feelings for! What will become of this love?
cousin x cousin + father x son
-Yaoi romance in France's Ancient Régime.
#1 - Otona no Kiss (Adult's Kiss)
#2 - Amakute Kiken no Himitsu (Sweet and Dangerous Secret)
#3 - Itoshiku Tsumetai Kimi (Beloved Cold You)
adopted brother x brother
-Masculine, cheerful Sakamoto Hideomi, reigning top host at a popular host club, was tricked into taking responsibility for a huge debt.
His only recourse is to go home, which he hasn't visited even once in seven years. The only person there is his "brother" of the same age, Yukiya -- although they aren't related by blood.
As a day trader, Yukiya earns loads, but he has one condition for shouldering the debt: that they live together.
However, the reason why Hideomi left
the older brother of the omega uke raped him in the past
-That person just wanted to see ... could it be that there shall be love? Kanae, a student was transferred to a quiet country town. The moment they saw Kanae whole class thought of wanting violarlo.Eso is due to a peculiar condition that has Kanae, being an impossible temptation to ignore. Ougi, being the leader of the class, also has the intention to do so and begins his plan. No matter what you think Kanae, it attracts their environment
stepbro
-Due to the second marriage of their parents, Jaeun and Jihan become brothers. His strict alpha father took a look at Jaeun, and expelled him from the family for being an omega. And now, Jaeun and Jihan are interacting for the first time, only after becoming adults...
Contains 2 stories, including the complete story of Netsuai, a love story between 2 brothers. Kazuki who comes from a traditional family gets into a relationship with his elder brother Souya.
first story/step uncle x nephew
-Tatsumi, raised by a grandmother he's not related to by blood, and Chinatsu, his uncle, who's been obligated to care for him since young. Without either of them noticing, a change is taking place in their relationship...?
Katakoi Kazoku