Relations Research

A Relationship about Orgasm Control

Fujun Group Kouyuu - Impure Group Relationship Ch. 2: Kanojo no Hisokana Tanoshimi | 第2話:她的秘密歡樂

Insect Research Institute 2

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

Aru Fushidara na Kankei no Kouroyku | The Effect of that Messy Relationship

[Kawai Shun] Odoru! Shokushu Kenkyuujo (Omake manga) | Dance! Tentacle Research Center (Bonus Comic) [Chinese]

Jinki: Extend 〜RELATION〜 vol. 5 Chinese Version （《人机JINKI》人机续篇 机翻汉化版）

Shiori Dai-Nijuuyon-Shou Ituwari no Hate - Shiori Volume 24 The End of False Relationship

Lavenza to, Tokubetsu na Kankei ni Natta... | My Relationship with Lavenza is Special...

[ratatatat74] Forbidden Relationship [Shitty_Translate] English

[Shiranui Research Institute (Shiranui)] Shiranuhi Ninpo cho ichi-kan (King of Fighters, Street Fighter) [Digital]

[Slow Masturbation Research Society] "The seven fundamental operations" [ENG]

[Nekomata Naomi] Futanari Relations [English]

[Matsurioka Hideyuki] Reken ~Shinsoku Raper Domo~ | Rape Researches

[Rico] Otona no Koibito Kankei | An Adult's Lover-Relationship (Onii-chan Asobo) [English] {Mistvern}

How to Improve Your Relationship with Mikasa

Erina-sama no Renai Kenkyuukai. 2 I Erina-sama's love research lab 2

[Oidean] Inga na Kankei -Haha Kazumi 3- | Fated Relation Mother Kazumi 3 [English] [Amoskandy]

(C81) [Saigado (Saigado)] R-LAB. - Dr. Akagi's individual research lab (Neon Genesis Evangelion) [Chinese] [瓜皮漢化·母系戰士出品@萌夢星君發佈]

Kyonyuu Mama to Kinshin Soukan | Busty Moms and Intimate Family Relationships Ch. 1

Hikawake no Ibitsu na Seijijou Ch. 4 | Hikawa Houshold's Distorted Sexual Relationships 4

[Katagiri Kaneharu] Imouto ga Ore no Kanojo! ? 2-Paku 3-Nichi no Ecchina Kankei 1-4 | My Sister is My Girlfriend!? Sexual Relationship for Two Nights and Three Days 1-4 [English]

Fellatio Research Department Epilogue

[Minamida Usuke] Dokidoki Eizou-Kenkyuu-Bu | Steamy Cinema Studies and Research Club (COMIC HOTMILK 2017-01) [English] [Digital] [Incomplete]

(C70) [Bengal (Honoha)] NdR No discord Relations (Sengoku BASARA)

Our Fake Relationship

[Nekomata Naomi] Their Relation [ENG]

(C75) [Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho "Kessen Zenya" - Turupeta Research Report

[Ogawa Kanran] Yoi Kono Jiyuu Kenkyuu | Independent Research Time [English] [Jojo]

[MATSU Takeshi] Teacher-Student Relationship [ENG]

[Watan Kazunari] SEX Kousaijutsu | Sex Relations way

[Esuke] DOLLS Pure Physical Relationship 4P Leaflet Melon Books

(C84) [Kacchuu Musume (Yukiyanagi)] Shingeki no Kenkyuu | Attack on Research (Shingeki no Megami) (Shingeki no Kyojin) [English] [CGRascal]

[Gekka Kaguya] Shimai no Kankei | The Relationship of the Sisters-in-Law (Bengoshi -> Futanari -> Namahaishin) [English] [Komori Translations] [Digital]

Futanari Relations Ch11

Ironna Kankei - Iro-Ero relationship Ch. 1-2, 4, 6, 8, 10, 12

[Narusawa Kei] Kare Kano Boshuu Chuu! | Relationships Wanted! (COMIC RiN 2010-10) [English] [Sling] [Decensored]

[Saemon] Ironna Kankei - Iro-Ero relationship Ch. 1-2, 4, 6, 8, 10, 12 [English] [N04h] [Digital]

[Arsenal] Love relation [English] [biribiri]

A Daughter and Her Father's Inappropriate Relationship

[Higenamuchi] Tadare En | Debaucherous Relationship (COMIC Kairakuten 2014-11) [English] =LewdWaniBootleggers=

[Penchapen] Enkyori Renai Chuu ni Dokushin Oba-san o Ninshin sasete shimatta. | While in a Long-distance Relationship I Got my Single Boss Pregnant [English] [Amoskandy]

Oyako to Seiai | Sexual Relations with Mother and Daughter ~ Kyouka San

Igyou Seibutsu Zukan Michi no Kenkyuu Kikan Hen I | Illustrated Adulteration of Deformed Organisms: Unknown Research Institution, I

Twilight's Research | 暮光学习计划

Gal to InCha no Kousai Shuukan. | A Week-Long Relation Between a Gyaru and an Introvert.

(C93) [S.S.L (Yanagi)] Chaldea Himitsu no Renai Shidou | Chaldea's Secret Relationship Guidance (Fate/Grand Order) [English] [Saint Quartz Scans]

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

Diaper-related summary 2

[Katase Nano] Renai Relation | 戀愛時的親密關係 [Chinese]

Dance! Tentacle Research Center - Seedbed-hen

[yasu] Ibitsu na Kankei ~Manatsu no YariCir Rankou Gasshuku~ - Distorted relationship Ch. 1-2 [English] [DKKMD Translations]

(C84) [Tengudou (Tengudake)] Shujuu no Kankei! - The Relation of Master to Servant (Bakemonogatari)

[Tamabian (Tamabi)] Gal to InCha no Kousai Shuukan. | A Week-Long Relation Between a Gyaru and an Introvert. [English] [Nisor]

[Nekomata Naomi] Futanari Relations

New relations

Lavenza to, Tokubetsu na Kankei ni Natta... | Lavenza and I Have a Special Relationship...

[Shiraishi Nagisa] Kinjirareta Futari | Forbidden Relationship (Boshi Chijou Kitan 2) [English] [Koichan]

Yuujin A no Soukanzu | Relationship Chart for Friend A

A Relationship of Absolute Control

[Hindenburg] Chinotsunagari - Blood Relationship [Kinjirareta Asobi Chapter 1][English]

(C79) [Yubisaki Studio (Hidari Kagetora)] Les Chuu Life 5th Relation [English] {bfrost}

12-sai Sa no Himitsu Renai | A Secret Relationship 12 Years Apart

Futanari Kenkyuu Dousoukai | Futanari Research Club

Love Relation Chapter 3

Relationship with Loraine

Before married PE teacher indulges in immoral sexual relation

Our Secret Relationship

Kinshin Goukan | Near Relation Rape

Ecchi kara Hajimeru Fujun Isei Kouyuu - illicit sexual relationship

Research of Barnaby Brooks Jr.

[Maka Fushigi] Short Distance Relationship - The Cousin [English] [ATF]

[Noise] Chinko no Jiyuu Kenyuu | Dick Research Project (COMIC LO 2019-05) [English] [Doki Fansubs] [Digital]

Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club

Futanari Relations Ch4

[Ikumura (Iku)] Oku-san to no Gokei Kankei | A Reciprocal Relationship with a Married Woman [English] [Coffedrug] [Digital]

[JUNNY] Shujuu Kankei | Master and Servant Relation (COMIC Himezakura 2005-04 Vol. 4) [English] [Baseballbat Boy] [Decensored]

(C80) [Digital Accel Works (INAZUMA)] INAZUMA Jiyuu Kenkyuu | INAZUMA Research Project (PreCure) [English] {5 a.m.}

DLO-04 Kare to Watashi no Kowareta Kizuna | DLO-04 My Boyfriend And My Broken Relationship

Madoka to Seiteki Kankei ni Nareru Route o Mitsuketa Homura-chan | Homura has found a route to a sexual relationship with Madoka.

[Kawai Shun] Odoru! Shokushu kenkyūjo (Omake manga) | Dance! Tentacle Research Center (Bonus Comic) [English]

[Saemon] Ironna Kankei - Iro-Ero relationship [Chinese][GANTZ重嵌][Incomplete]

[Saemon] Ironna Kankei - Iro-Ero relationship [Digital]

[Emori Uki] Saimin Apuri de Hajimaru Kinshin Kankei | Hypnosis app begins an incestuous relationship (COMIC HOTMiLK Koime Vol. 30) [English] [innyinny]

Research Love Make Presentation | Research Lab x Expression

[Croriin] Koi Kankei (Yarikomi Saga ~Isekai Seikatsuki~ - chapter 1 - A Thick Relationship) [English] [Tigoris Translates]

Bible Black - forbidden relationship between father and daughter

[Napier Sabre (Ryu-Akt)] Relationship (Phantasy Star Portable 2 Infinity) [Digital]

Ecchi kara Hajimeru Fujun Isei Kouyuu – illicit sexual relationship {Hennojin}

Fellatio Kenkyuubu Blowjob Research Club Ch. 3

[Matsufuji Junko] Our Fake Relationship [English] [Lililicious]

Attack on Research

Sougou Hoshoku Relation | A Mutually Predacious Relationship

[Pritannia (Pri)] Rojiura Mansion Mahou Shoujo Fujun Isei Kouyuu Zenpen | Backstreet Apartment Magical Girls’ Impure Sexual Relations (Fate/kaleid liner Prisma Illya) [English] {CapableScoutMan & bigk40k} [Digital]

[Hara Shigeyuki] Binyuchousain Ayako | Busty Researcher Ayako [English] {Tadanohito} [Digital]

RELATION

Love Relation Chapter 2

Oba-san to Hadaka no Otsukiai! | Naked Relationship with Auntie!

Erotic magical world of strange relationships

[Maka Fushigi] Short Distance Relationship - The Niece [English] ATF

Sweet Relation

[Takemitsu Tenta] Doro-Doro Nupu-Nupu Sankaku Kankei | Gooey-Gooey Fucky-Fucky Triangle Relationship (Digital Puni Pedo! Vol. 23) [English] {Mistvern}

Erotic magical world of strange relationships

[Fujiyoshi] Obedient Relation (English)

Inga na Kankei Haha Kazumi 3 | Fated Relation Mother Kazumi 3

(CR35) [Hyoujooukoku (Minaduki Haruka)] Relation (Fate/stay night) [Chinese]

[Maka Fushigi] Short Distance Relationship - Childhood Friends [English] ATF

Secret relationship

Joushi to Buka no Kankei SPD | SPD - Superior and Subordinate's Relationship

On'na ni natta ore to kaonajimi to no kankei ga kawaru toki How My Relationship With My Acquaintance Changed When I Turned Into a Girl

Gishimai no Kankei The Relationship of the Sisters-in-Law Original Script Uncensored

[Hroz] Succubus no Ningen Kenkyuu | Human Research by a Succubus [English] [thetsuuyaku + 4dawgz]

Abunai Kankei | Dangerous Relationship Ch. 5

(C81) [CDPA] Unbalance Relationship (Unbalance x 2 , UxU) [ENG]

Love doll~ toy relation~

[Kai Hiroyuki] Boshi Katei | Mother and Son Forbidden Relations (Hannari Otona Kyouiku) [English][Amoskandy]

Youkoso! BL Kenkyuu Club | Welcome to the Yaoi Research Club

(C79) [Kirintei (Kirin Kakeru)] Break relations (THE iDOLM@STER)