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This one is translated to english!

“Even Though I Shouldn’t Cum...” Lewd Fingerings of My Boyfriend’s Big Brother

"My first time was... supposed to be with him...!" Miu and Takeru have been dating for a month. Trying to make progress in their platonic relationship, Takeru invites Miu to his house. On the way, he hands the spare key to Miu and tells her to go ahead while he shops for something. With her heart pounding, Miu opens the door... and runs into Takeru's brother in the house that was supposed to be deserted!
"You were gonna do it with Takeru anyway. I'll be your practice partner." She can't hold back from getting wet as her pink nipples are thoroughly played with, even though her heart denies it...
The older brother's skilled fingers shifts her underwear aside and squelches inside her...!

Japanese RAW (Chapters 1-6): /g/1727797/d1db2db401/

English Webtoon version: https://comiko.net/series/126207

dont worry guys! the lil bro has a bigger dick than his big bro and since its NTR, size wins!

Base +7, liberius +6

How is the guy considerate? This hussy says the funniest things.

Base +6, Krozam +10

Somehow everything turned out extremely bland. Perhaps the younger brother’s girlfriend got pregnant from his older brother, but in the end everyone just went their separate ways, pretending that nothing had happened. I would have liked to see more interaction and relationships between the characters, rather than them blushing and crumpling in place. There is no sense of completion here.

Base +24, Fofotron +17, anime1980 -10, ToaKraka +7

Hey, in the end, little bro is the one who got to do some xxx-rated hand holding

Base +7, Fofotron +17

Man, I always distract when I read something like this, even though it's hentai anime I hope the blackmail could be more realistic.

Base +1

Oh no not the hands) If some NTR ugly bastard see this and took pictures how this couple holding hands its just gonna go in another NTR route)
Btw what nice big bro screw her over and just like oh do you still love my bro? Damn you are real deal make him happy forget about me) Dude you are his bro do you really think you can just avoid encounter with her? And he just walk away with his loyal bitch damn like wtf why his reason fuck her to begin with? IDK something off maybe i dont read it well maybe i miss something but stupid NTR never make my brain melted as this one cuz i hate story who are look like its romcom NTR with happy ending like this never happened its just you know nothing plot just as dust)

Base +5, Fofotron +17, BZo1480 +6

Oh sorry little brother I took your gf's first time, first kiss I raped creampied her non stop but you... You win dude, at the end of the day she's the one holding your hand. Slay king.

Yeah right, what load of bullshit. The guy just casually left. Unpunished, free, with a girl next to him, he just leaves like if nothing happened. Just missing Akagi's opening playing on the background to make him cooler.
MC might as well not exist until the last chapters when they tried to trap him but somehow miraculously escaped. Sadly he became a cuck at the end.
The girl is just your retarded smut heroine that gets raped non stopped because she's just so dumb she won't even bother to try or do something after her shit luck.

For this ending I feel the author either chickened out on a full blown proper NTR conclusion or he just gave up.

Base +6, Fofotron +17, Aside +6