Citing References Research

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

Alice's Exciting School Life

[Zonda] Fellatio Kenkyuubu | Blowjob Research Club [English] [Uncensored] [head empty + RedLantern]

Poses references

sweet hole*2

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

[Department Y Research Institute] Rorisakyubasu Wa Ningen Ni Tsukamaruto Dō Naru No?

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

[Un-Go] Doctor Kazamori's Slightly Naughty Research 2 [English]

[Department Y Research Institute] Gen'ō No Seidorei-Chan De Asobou!

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

Futanari Kenkyuu Dousoukai | Futanari Research Club

(C90) [Tsurikichi Doumei (Umedama Nabu, Mutsu Nagare)] EXCITING 90's (Dragon Ball Z, Streets of Rage)

[inkey] Himitsu no Shiryoushitsu | The Secret Reference Room (Inbi Temptation) [English] {doujin-moe.us} [Decensored]

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

(C92) [Ukatsu de wa Nai (noukatu, Minase Kuru)] Tsumugi EXCITING SUMMER (THE IDOLM@STER MILLION LIVE!) [Chinese] [胸垫汉化组]

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

A·ZU·NA LAND Waku Waku Animal Park | A·ZU·NA LAND Exciting Animal Park

Movie Research Lovers

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

Merry NitocrisMash | Merty 니토크리스마슈

Dance! Tentacle Research Institute

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

[Dokurosan] Eiken Lovers | Movie Research Lovers (COMIC Tenma 2009-05 Vol. 132) [English] [Brolen]

[Ukatsu de wa Nai (noukatu, Minase Kuru)] Tsumugi EXCITING SUMMER (THE IDOLM@STER MILLION LIVE!) [Digital]

His Preferences (Kaka-Iru Fan Book; No.12)

(SC58) [Sorairo March (Narusawa Sora)] Omoshiroi, Watashi o Haramasete Miro | How Exciting, I Dare You to Impregnate Me (To LOVE-Ru Darkness) [English] {doujin-moe.us}

Zettai ni Ikasetai Adult Goods Maker Kaihatsubu VS Zettai ni Ikanai Adult Goods Maker Eigyoubu | The Sales Rep Who Absolutely Won’t Come VS The Researcher Who Absolutely Wants to Make Her Come

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

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

(C78) [Yo wa Okazu wo Shomou Shiteoru (Shian)] Onna Kenkyuuin no Ijou na Aijou | A Female Researcher's Abnormal Desire [English] =LWB=

Exciting Date

[Department Y Research Institute] Bōkoku ōjo no matsuro

ツムギEXCITING SUMMER

[Minasuki Popuri] Lulalula Room Ch.1 Exciting Switcheroo [English] {5 a.m.}

[Akano Murasaki] Eruru no Dokidoki Dildo Onanie | Eruru's Exciting Dildo Masturbation Session [English] {Doujins.com}

[Equal] OL-san no Dokkidoki Nyannyan Densha | OL-sans Exciting Make-out Train (Comic Masyo 2009-06) [English] [biribiri]

[Zonda] Fellatio Kenkyuubu - Fellatio Research Department | Blowjob Research Club Ch. 3 (COMIC Mugen Tensei 2022-02) [English] [CrinkzScans] [Digital]

(C84) [Surface (Peach)] Shironeko (Ore no Imouto ga Konna ni Kawaii Wake ga Nai)

Fellatio Research Department Epilogue

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

Natsume's Exciting Day and Night

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

[Takenoko Seijin] Dokidoki! Kanbyou Taiken! | An Exciting Nursing Experience! (Going Otome) [English] =LWB=

EXCITING REFLEXOLOGY

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

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

[Zonda] Fellatio Kenkyuubu Ch. 3 | Blowjob Research Club Ch. 3 (COMIC Mugen Tensei 2022-02) [English] [Sloppy Seconds] [Digital]

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

(C91) [Neko wa Manma ga Utsukushii (Hisasi)] Erina-sama no Renai Kenkyuukai. 2 I Erina-sama's love research lab 2 (Shokugeki no Soma) [English] [Metaphrastes]

Exciting Cum Live Broadcast

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

Epic plan for an exciting bath!

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

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

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

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

[KAMINENDO.CORP (Akazawa RED)] Makotoni Zannen desu ga Bouken no Sho 4 wa Kiete Shimaimashita. [Digital]

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

Dance! Tentacle Research Institute

Adult Goods Tanchiki ~Machi no Inran Onna o Research Seyo~

(C78) [Draw Go (Souichi)] Tokumei Research 1999 ~ Maya-chan Shinsou Kaimei File ~ (Occult Academy)

D.L. action 32 (English)

(C92) [Ukatsu de wa Nai (noukatu, Minase Kuru)] Tsumugi EXCITING SUMMER (THE IDOLM@STER MILLION LIVE!)

[Watanabe Wataru] An exciting lesson [English]

Binyuchousain Ayako | Busty Researcher Ayako

Fellatio Kenkyuubu Blowjob Research Club Ch. 3

(C89) [HAMMER_HEAD (Makabe Gorou)] Graf Zeppelin no Wakuwaku ❤ Nihon Bunka Taiken - Nihontou Hen | Graf Zeppelin's Exciting ❤ Japanese Culture Experience - Japanese Sword Arc (Kantai Collection -KanColle-) [English] [Rozett]

Kamiyama Koukou Omanko Kenkyuukai Katsudou Kiroku | Kamiyama Highschools Vagina Research Society Activity Record

Exciting Cum Live Broadcast

Going Otome Chapter 7 - "Exciting! Nursing Experience!"

(C81) [Pish Lover (Amatake Akewo)] Harahara Heroine Fan Kanshasai | Exciting Heroine Appreciation-Day [English] {PineApples R' Us + Doujin-Moe}

[NiseMIDIdoronokai (Ishikei)] BetsuJin no Omake - Zareteshimatta Jun wo Mae ni Nagi wa (Various)

[Hito no Fundoshi (Yukiyoshi Mamizu)] EXCITING REFLEXOLOGY [Digital]

(COMIC1☆11) [Showa Saishuu Sensen (Hanauna)] Kamiyama Koukou Omanko Kenkyuukai Katsudou Kiroku | Kamiyama Highschools Vagina Research Society Activity Record (Hyouka) [English] [Doujins.com]

(COMIC1☆8) [Nantara Kantara (Shungiku Tenudon)] Shuuhaku no Miko (Toukiden)

Zecchou Kenkyuujo | Orgasm Research Facility

Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research

Twilight's Research | 暮光学习计划

Echiechi Connect

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

Bowsette's Research

[Arai Araya] The Exciting Pleasure Train [English][DesuDesu]

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

[ACTIVA (SMAC)] R-Otome Comic 「Nakazawa-san's Exciting Night 」(Original) (ENG)

[Shinsekai Set (Hetaren)] Kurodate o Shiro ni Someru Seishoku Kenkyuu o (Blue Archive) | Sexual Gourmet Research: Dyeing Kurodate White [English] [Douzo Lad Translations]

Onna Ninja no Dokidoki Hatsu Ninmu | A Female Ninja's Exciting First Mission

(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]

Dance! Tentacle Research Center - Seedbed-hen

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

Attack on Research

Manga Research Triangle

Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club

Eruru no Dokidoki Dildo Onanie | Eruru's Exciting Dildo Masturbation Session

Sanko ni Sasete! | Let Me Use You As Reference!

Fellatio Kenkyuubu - Fellatio Research Department

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

How Exciting, I Dare You to Impregnate Me

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

[Hormone Koijirou] Azeru no Dokidoki Tsuugaku-ji | Azel's Exciting Road to School [English] [SaHa]

Oshioki Len kyun | 벌 받는 렌 군

Research of Barnaby Brooks Jr.

Research Love Make Presentation | Research Lab x Expression

EXCITING 90's

(C74) [Tsurupeta (Various)] Tsurupeta Kenkyuu Houkokusho "Kakyuu Sentou In no Isshou" - Turupeta Research Report

[りんごくらぶ] そらちゃんとお家で編 (ときのそら)

Complete Offline Photo Reference

Magical Occult Research Girl Defeated

[botibotiikoka (takku)] Alice's Exciting School Life [English] [Decensored]

EXCITING REFLEXOLOGY

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

Gouhouteki Kanyuu | Lawful Soliciting

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

Harahara Heroine Fan Kanshasai | Exciting Heroine Appreciation-Day

[Department Y Research Institute] Bōkoku Ōji no matsuro

Shirogane no Shota Shuryousai ~Stress o Kaishou Suru Tame Mainichi Shota-tachi o Naburi Taosu Koto dake o Kangae Mousou to Genjitu no Kubetsu ga Wakaranakunatte Wakai Seieki no Yokubou ni Fukaku Ochiiru..

[Hito no Fundoshi (Yukiyoshi Mamizu)] EXCITING REFLEXOLOGY [Chinese] [含着个人汉化] [Digital]

[Minasuki Popuri] Lulalula Room Ch.1 Exciting Switcheroo [English] {5 a.m.}

Fellatio Kenkyuubu | Blowjob Research Club

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

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

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

Two Girl's Suck-Suck Research Note

(C92) [Sakurai Dai Energy (Sakurai Energy)] Dokidoki Suiren Massage | An Exciting Swimsuit Massage (Pokémon Sun and Moon) [English] {Doujins.com}

(C80) [Circle Nuruma-ya (Tsukiwani)] Hijirin Yume Mousou (Touhou Project) [English] [CGrascal]

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

(COMIC1☆5) [TETRODOTOXIN] Exciting Sex-Ed (Hokenshitsu no Shinigami) [English] [Doujin-Moe]

It's Exciting to Fuck a Girl You Don't Love | Suki ja Nai ko to Sex Shita Hou ga Koufun Suru Setsu

Nakazawa-san's Exciting Night

Tsumugi EXCITING SUMMER

(C93) [Dodoitsu. (Panco.)] Research Love Make Presentation | Research Lab x Expression (Motto! Hinekure Chaser 3) [English] [Pink Cherry Blossom Scans]

[Ailail (Ail)] Suki ja Nai ko to Sex Shita Hou ga Koufun Suru Setsu | It's Exciting to Fuck a Girl You Don't Love [English] [KittyKatMan]