Yes!! Here are some of my manga recs:
- https://www.mangago.me/read-manga/bokura_ni_namae_wo_tsukerunara/
- https://www.mangago.me/read-manga/ani_no_chuukoku/ (first and last chapter)
- https : // my reading manga . info / omoi-san-kyodai-de-nakayoshi-etchi-chinan-ukete-eng/ (put it in the search bar without the spaces)
- https://www.mangago.me/read-manga/boku_no_kareshi_no_sukinahito/ (I won't spoil this one, but let's just say it's a mixed bag and may or may not be satisfying)
- https://www.mangago.me/read-manga/ganjigarame/ (kind of messed up)
- https://www.mangago.me/read-manga/yonin_no_nibiiro/ (half siblings, abusive, but...)
- https://www.mangago.me/read-manga/brother_play_official/ (doesn't really have a plot)
- https://www.mangago.me/read-manga/first_thing_i_do_when_i_wake_up/ (not blood related)
- https://www.mangago.me/read-manga/the_face_of_my_brother_that_only_i_know/ (fully abusive, would not recommend if you are looking for pure love/romance)
Hope you like some of these :)
Hiii id like to rec https://www.mangago.me/read-manga/kokoro_o_korosu_houhou/
if u havent read this one yet. very angsty and twisted with age gap, non-related incest, and rape themes.
Another random rec I forgot to mention (contains serious themes like child abuse): https://www.mangago.me/read-manga/yoru_no_kyoudai/

As a connoisseur of this, er, subgenre, I was pretty excited about this manga when I first started reading it elsewhere. It's rare to see the older one also being bigger and taller, which is my preference. But honestly it was pretty disappointing and I'm only reading it out of habit now. Copy and pasted thoughts (SPOILERS BELOW):
The development was too unbelievable. Don't make me actually feel sad for the little brother, only for him to then go after his big brother so boldly. And it's crazy that big brother decided to suck him off without any actual resistance to the idea. No question of, "Hey, where's this coming from - has anyone been doing anything to you?" Because I think if my sibling started acting sexual toward me after a week-long stint of depression/insomnia/avoiding me, I would assume they might have been sexually abused and would start asking them questions (even though we, the audience, knows this didn't happen).
Like, let's say you have a younger friend who's been acting all down for a week and then suddenly climbs into bed with you. Is your first reaction gonna be "welp, guess I need to get you off now"? If it were me, I'd be startled and then I'd be like "Hey, what the fuck are you doing?" At most, you might pretend you're asleep and let them rub against you (either because you like them or out of fear/shock/paralysis), but would you give them a blowjob out of the blue? And it's even less likely you would do that for your own brother... if you really cared about him, that is. Because if you cared you would want to know why the fuck they are in your bed with a hardon. I understand being non-confrontational but by God that is not how siblings act toward each other, even if one of the siblings feels horny for the other.
Me, part of my enjoyment is the angst of harboring illicit feelings for the "wrong" person. I also enjoy believability, and the actions of both brothers are just sooo unbelievable. No one acts like that. I could attempt to give the younger brother a pass for being so sleep-deprived he lost his fucking mind - that part is not completely unfeasible - but no one gives their brother a BLOWJOB of all things after no history of such actions. Even a handjob would have been more believable...
Long story short, don't read this is if you're looking for a decent, believable story (if you want any recommendations feel free to ask). But if you don't care about plot and are just here to get your rocks off to taboo stuff, then by all means proceed...