Citing References Research

Zecchou Kenkyuujo | Orgasm Research Facility

(C91) [Graf Zeppelin (Ta152)] YouYoshi Exciting Heart! (Love Live! Sunshine!!)

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

Fellatio Kenkyuubu - Fellatio Research Department

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

[Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho 005 "Dengeki Jigoku" - Turupeta Research Report

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

YouYoshi Exciting Heart!

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

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

Nakazawa-san's Exciting Night

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

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

Movie Research Lovers

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

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

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

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

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

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

Futanari Kenkyuu Dousoukai | Futanari Research Club

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

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

Poses references

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

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

Harahara Heroine Fan Kanshasai | Exciting Heroine Appreciation-Day

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

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

Research Love Make Presentation | Research Lab x Expression

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

Fellatio Kenkyuubu Blowjob Research Club Ch. 3

Dance! Tentacle Research Institute

Manga Research Triangle

[Department Y Research Institute] Bōkoku Ōji no matsuro

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

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

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

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

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

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

EXCITING REFLEXOLOGY

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

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

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

Insect Research Institute 2

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

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

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

Dance! Tentacle Research Institute

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

How Exciting, I Dare You to Impregnate Me

EXCITING 90's

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

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

Exciting Date

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

(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]

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

Zecchou Kenkyuujo 2 Orgasm Research Facility 2