https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_462840
https://www.pixiv.net/users/63124727

奇怪的3D感

Base +5

[Synopsis]

Three years ago, his father remarried and his step-mother gave him a new child who is now his step-sister (Kanon).
Kanon is a top athlete on the track and field team. She is also beautiful and cheerful and they get along well.
Recently, the protagonist (Hayami Seiji), who lives in the next room, has been hearing moaning coming from Kanon's room, which has him in agitated.
(Although she is his sister, the moaning of a girl who is not related to him by blood...)
Seiji, wanting to cherish their current brother-sister relationship and the presence of his girlfriend (Uchiyama Nao), who he has been dating for a year, has been trying to suppress his excitement.
One day, while at club activities, he spots Kanon staying after school for practice.
Seiji is worried as she seems to be in a bad mood.
That night, Kanon comes into his room and asks for his advice.
"Brother, I've been feeling frustrated and sluggish lately...so... please! Help me satisfy my sexual needs!!"
It's a sudden confession, but Seiji refuses, saying they're siblings and he has a girlfriend, so he can't be dishonest.
However, Kanon refuses.
"But the body is honest, isn't it..."
Suddenly, she pushes Seiji's pants and underwear aside and begins to give him a blowjob.
He feels the need to resist but the pleasure gradually washes over him and he loses his strength and is unable to move.
After that, Kanon inserts herself, attacks him fiercely and begins to seduce him...

Sequel (Raw): https://e-hentai.org/g/3506417/e034fcbe67/

Base +28