CompletedAnime

Aneki no Kounai Kaikinbi

アネキの口内解禁日

“Sister escalates sexual encounters with brother, taking "responsibility" for his curiosity while forbidding intercourse.”

1 episodes17 min

HentaiWinter 2012OkumazaRx - Hentai

5.49 Community score

9,696 viewers46 favorites

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Episodes · 1

1/1 aired

EP 01 EP 01

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Synopsis

Sister escalates sexual encounters with brother, taking "responsibility" for his curiosity while forbidding intercourse.

When 23-year-old Hirose Anna finds out that her little brother masturbates with her dirty underwear, she decides to take things a step further by allowing him to see her do naughty things as well. Each time the situations escalate until she comes out and tells him that as his big sister she will take responsibility for his sexual curiosity. She allows him to do anything with her except for proper sex; yet as his requests get dirtier each time, she remains determined to take responsibility and keep things going no matter what.