Otouto no Seiyoku Shori wa, Ane ga Suru Mono da to Onee-chan wa Omotte iru.
61%
MANGA • 2020
status
Completed
start-date
23/11/2020
end-date
23/11/2020
country-origin
JP
popularity
442
studios
synonyms
My Big Step-Sister Thinks That Big Sisters Should Take Care Of Their Little Brother's Sexual Urges
My Big Stepsister Thinks It's Her Job to Care For My Sexual Needs
My father just remarried, and I now have a stepsister around the same age as me.
What's more, is that I'm using her as my own personal fap-pet!
She's the shortest at school. She's also got the biggest bust!
For some reason, she's under the impression that it's her job to care for my sexual needs, and I'm not about to correct her any time soon~!
(Source: DLsite)
Note: A live-action AV adaptation (MIMK-113) was released on March 21st, 2023.