Relations Research

[Yukarigawa Yumiya] Maku Saikai | Forbidden Relationship (Ikenai Kotokai) [English]

A police woman turns out to be in a relationship with a gangster

[Takahashi Note] Jiyuukenkyuu | Independent Research (COMIC LO 2015-11) [English] {5 a.m.}

Inu to Kitsune ga Majiwaru Yoru ni | The Relationship Between The Dog And Fox In The Night

Yuri-ken Beit Boshuuchuu Soushuuhen | Yuri's Lab Wants Research Assistants

Kindan Soukan -Haha to Ko no Tawamure- | Forbidden Relations -Mother Son Frolics-

[Ohnuma Hiroshi] Related

Kanzen Kanri no Kankei | A relationship of absolute control

(C63) [MUSASABIDO (Bakuchin)] Research of a maid

[Shiro Tsunashima] Jinki: Extend 〜RELATION〜 vol. 1-4 [Chinese]《人机JINKI》画质修复

[Kawai Shun] Odoru! Shokushu Kenkyuujo | Dance! Tentacle Research Institute [English] [solowing]

SPD - Superior and Subordinate's Relationship

Bowsette's Research

Taiyouou to no Kankei | Relation To The Sun King

[Ishigami Kazui] Himitsu no Kankei - Secret Relation

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

[Nekomata Naomi] Neko no Shippo | The Cat's Tail (Futanari Relations) [English] =Team Vanilla= [Decensored]

[Shimashima-PNT (Punita)] Ecchi kara Hajimeru Fujun Isei Kouyuu - illicit sexual relationship (Re:Zero kara Hajimeru Isekai Seikatsu) [Chinese] [final個人漢化] [Digital]

Fellatio Kenkyuubu | Blowjob Research Club Ch. 2

Forbidden Relations: Mother Son Frolics

Sensei to Seito no Kankei tte Konna ni mo Open nanoo!? | Are Teacher-Student Relationships This Open?!

[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]

[Oidean] Inga na Kankei -Haha Kazumi- | Fated Relation Mother Kazumi 1 [English] [Amoskandy]

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

Jiyuu Kenkyuu de Ochinchin o Shiraberaremashita | We Decided to Examine a Penis for Our Independent Research

Fuufunaka Chousain Shimoda Tsutomu | Hypno Couple Relations Examination Continuation

Kyoudai no Katachi Zenpen+Kouhen | The Ideal Sibling Relationship Part 1+2

[yasu] Ibitsu na Kankei ~Manatsu no YariCir Rankou Gasshuku~ - Distorted relationship Ch. 1-3 [English] [DKKMD Translations]

[Come hermitage] Causal relationship over mother-Kazumiｰ

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

[Tsukishiro Saya] Hikawake no Ibitsu na Seijijou Ch. 2 | Hikawa Houshold's Distorted Sexual Relationships 2 [English] {Doujins.com}

[Kemigawa] Kimi to Boku no Kankei | The Relationship Between You & I (COMIC Anthurium 2018-07) [English] [Redlantern] [Digital]

[k8on] A Daughter and Her Father's Inappropriate Relationship [English] [The People With No Name]

[Tempuru] Albedo & Sucrose's Isekai Observation Research Report

[Haruta] Youkoso! BL Kenkyuu Club | Welcome to the Yaoi Research Club 2-in-1 Bonus Chapter [English] [Digital]

A Relationship about Orgasm Control

Fellatio Kenkyuubu Ch. 3 | Blowjob Research Club Ch. 3

Sleep Relationship

Attack on Research

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

[Kawai Shun] Odoru! Shokushu Kenkyuujo "Naedoko" Hen | Dance! Tentacle Research Center - Seedbed-hen [English] [solowing]

(SC23) [Shibakko. (Shibasaki Ako)] RELATION (Fate/stay night) [Chinese]

Before married PE teacher indulges in immoral sexual relation

Erotic magical world of strange relationships

Zecchou Kenkyuujo | Orgasm Research Facility

[Zonda] Fellatio Kenkyuubu Ch. 2 | Blowjob Research Club Ch. 2 (COMIC Mugen Tensei 2021-07) [Chinese]【羅莎莉亞漢化】

Fellatio Kenkyuubu | Blowjob Research Club

[Kinku] Jiyuukenkyuu Bitch Report | Research Project: Bitch Report! (COMIC LO 2013-09) [English]

Erotic magical world of strange relationships

[Aoirobindume (Shourin Kiyoshi)] Na no Nai Kankei | A Relationship Without Name (91 Days) [English] [cryofblood]

[Nekomata Naomi] Their Relation [English][Decensored]

(Tetsusabiiro no Relation 2) [Pometeor (Enotou)] Nanka Kore Naoranainda yo ne (Mobile Suit Gundam Tekketsu no Orphans)

[Naomi Nekomata] Futanari Relations [English] [Decensored]

Secret relationship

Fellatio Research Department Epilogue

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

Twilight's Research | 暮光学习计划

Strange na Kankei | Strange Relationship

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

[yasu] Ibitsu na Kankei ~Manatsu no YariCir Rankou Gasshuku~ - Distorted relationship Ch. 1 (COMIC Grape Vol. 57) [English] [DKKMD Translations]

[Hoshino Fuuta] Pool no Naka - Pool Relationship [English]

(C96) [Tamarun (Tamarun)] Abby Kenkyuu Bon | Abby Research Book (Fate/Grand Order) [English] [Team Chungus TL]

Unbalance Relationship

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

relationship -Mother & Son-

JS Kenkyuukai | JS Research Seminar

Kanojo no Kankei | Her Relationship

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

[Kojima Saya] Boku to Kanojo no Shujuu Kankei - Me And Her Master-Servant Relationship Ch. 1-3 [English] [freudia]

Abunai Kankei | Dangerous Relationship Ch. 5

[Chinjao Girl. (Someoka Yusura)] UreAne ~Sanjuudai kara no Tsugou ga Yosugiru Kyoudai Kankei~ | My Mature Older Sister ~The Crazy Convenient Relationship of An Older Sister and Younger Brother In Their 30s [English] {Doujins.com}

[SOLOPIPB] Futsuu no Kankei | Normal Relationship (Comic X-Eros #34) [English]

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

(C86) [Yusaritsukata (Awayume)] Teitoku no Koto nara Suzuya ni Omakase dayo | If It's Anything Related to Admiral, Leave It to Suzuya (Kantai Collection -KanColle-) [English] {doujin-moe.us}

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

[Kawai Shun] Dance! Tentacle Research Institute [English]

[bifidus] Yuri-nee to no Shujuu Kankei | Master and Slave relationship with Yuri-nee (Kimi o Sasou Uzuki Ana) [English] [Redlantern] [Digital]

Ironna Kankei - Iro-Ero relationship

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

Continuation amd character model sheets of "The Ability to Dye Relationships"

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

Love Relation Chapter 3

Diaper-related summary 2

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

[1bit (yuyu)] Igyou Seibutsu Zukan Michi no Kenkyuu Kikan Hen I | Illustrated Adulteration of Deformed Organisms: Unknown Research Institution, I [English]

Fellatio Kenkyuubu - Fellatio Research Department

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

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

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

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

Secret relationship

Mosaic Relation

Dance! Tentacle Research Institute

Strange Relationship - Durarara doujinshi Japanese

[Gyunyu-Gekijo, HEATWAVE (Gyuunyuu, Yuuhi)] Not True Relation (Yu-Gi-Oh! Zexal)

] Kare to Watashi no Kowareta Kizuna -My Boyfriend And My Broken Relationshi

Relationship between Haman and Char: Part 1

Kono Naka ni Kinshin Soukan Shiteiru Musume ga 3-nin Imasu #4 | Three Of These Girls Are In Incestuous Relationships #4

[WORLD BOX (yuu)] DiFFERENT RELATiONS (Durarara!!)

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

[Mother2] Kimaira Kenkyuu File - Chimera Research File [Chinese](Uncensored)

Watashi wa Jukensei no Oi to Kankei o Motte Shimaimashita. | I had a Relationship with my Exam Taking Nephew

Love Relation Chapter 2

Futanari Relations Ch8

(C92) [HIGH RISK REVOLUTION (Aizawa Hiroshi)] Shiori Dai-Nijuuyon-Shou Ituwari no Hate - Shiori Volume 24 The End of False Relationship (Tokimeki Memorial)

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

Kimi to Boku no Kankei | The Relationship Between You & I

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

[SOUND MILK (Otochichi)] Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research (Mahou Tsukai Precure!) [English] [ATF] [Digital]

Movie Research Lovers

[Noda Gaku] Abunai Kankei | Dangerous Relationship Ch. 5 [English] [Leon990 Scanlations]

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

Close Enough Relationship to Fight

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

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

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

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

DEEPER 1 RELATIONSHIP

A Relationship of Absolute Control

How to Improve Your Relationship with Mikasa

[Takano Yuki] Enren | Long Distance Relationship (COMIC AUN 2012-05 Vol. 190) [English] [desudesu]

Futanari Relations Ch4