Hentai Manga like Stand by OK!

Buta no Koubi

Status: Finished
Genres: Hentai

A door leading to the basement of a building in a corner of the downtown area. The door can only be opened by those who have been introduced by a member who has already joined the club and paid a hefty membership fee. Behind the door, all kinds of pleasures and lasciviousness with beautiful women are taking place!

The protagonist, who works for a publicly traded company, has recently been promoted and entrusted with the entertainment of a big shot. He is to be entertained at "Pig Hole," a secret club where he can have direct sexual intercourse with beautiful women of the highest quality! Accompanied by his boss, the hero steps into this forbidden club...!!

Note: Published in Comic Shigekiteki SQUIRT!! Vol. 25, 26, 27, 28, 30, 31, 33, 36

Mama Koubi

Status: Finished
Genres: Hentai

Mama Koubi (ママ交尾, Mating with mama); Comic Magnum v.106
Gohoubi Seikyouiku -A course- (ご褒美性教育-Aコース-, Sex education reward - A Course); Comic Magnum v.104
Gohoubi Seikyouiku -B course- (ご褒美性教育-Bコース-, Sex education reward - B Course); Comic Magnum v.28
Mama to Boku (ママトボク, Mama & me); Comic Magnum v.103
5-10. Mikami-kun no Kinshin Jijou (三上君の近親事情, Migami Kun's family reason); Comic Magnum v.107, 108, 109, 110, 111, 112
Soukan (ソウ・カン, Adultery); Comic Magnum v.102

Kinkyori Koubi

Status: Finished
Genres: Hentai

1, 11. Akisame Soukan (秋雨相姦); Comic Anthurium 026, kakioroshi
Anetsun Summer! (姉ツンSUMMER!); Comic Anthurium 029
Pet na Ane no Shitsukekata - Mukiryoku NEET Nakadashi Kousei Keikaku! (ペットな姉の躾け方 無気力NEET中出し更生計画！); Comic Grape Vol.24
Suimin Haramase Bride (睡眠孕ませブライド); Comic Anthurium 024
Futari wa Bitch Idol - Shimai Nakadashi Kindan Live! (ふたりはビッチアイドル 姉妹中出し禁断ライブ！); Comic Grape Vol.22
Kinshinsoukan no Yoru - Chichi to Musume ga Koen de... (近親相姦の夜 父と娘が公園で…); Comic Grape Vol.7
Kandou no Saikai (姦動の再会); Comic Grape Vol.20
Hoshino Sensei no Kozukuri Kyoushitsu - Tadashii Onnanoko no Haramasekata (星乃先生の子作り教室 正しい女の子の孕ませ方); Comic Grape Vol.17
Shuukatsu ★ Haramase Audition! (就活★孕ませオーディション！); Comic Anthurium 020
Kimobuta ga Oshieru Nakadashi Yuugi (キモ豚が教える中出し遊戯); Comic Grape Vol.19