Research Operationalization porn

(C83) [Nakasone Battalion (Nakasone Haiji)] Lawson Tenin Rin-chan (THE IDOLM@STER CINDERELLA GIRLS)

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

(C88) [Shimoyakedou (Ouma Tokiichi)] N.G play (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [鬼畜王汉化组]

(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]

Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research

Kazoku Keikaku 2 | Family Planning 2

Moving Family [English] [Rewrite] [EZ Rewriter]

[Mozu] Hanikamu Secret [Digital]

[Hanpera] Mazekoze Fuufu (Web Haishin Gekkan Tonari no Kininaru Oku-san Vol. 030) [Chinese] [Digital]

Attack on Research

[Nagashima Chousuke] Pururun Seminar 1 [English] [Tadanohito]

人形堕戀語 東方Project

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

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

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

Fellatio Kenkyuubu | Blowjob Research Club Ch. 2

Movie Research Lovers

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

[Department Y Research Institute] Bōkoku Ōji no matsuro

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

Dance! Tentacle Research Institute

Magical Occult Research Girl Defeated

[ShindoL] Henshin -emergence- Ch. 7

Spotlight 2

KUROBACO BITS

(C87) [Minori Kenkyuujo (Minori Kenshirou)] Calpis no Awa

(C75) [Mahjong Yugen Co Ltd 58] Kuma ga Bishounen te nai yo ne!! (Persona 4)

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

Dance! Tentacle Research Institute

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

Manga Research Triangle

不知火舞被自己的菊花勒死的可笑末路

Ho Kuronikuru 09

Research of Barnaby Brooks Jr.

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

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

Ore no Mono ni Natteyo

Heibon-kei E

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

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

Mou Doudemo Ii ya

Etsu no Yodomi Dainishou Mononobe no Futo, Ecchi na Shugyou Ganbaru!

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

[Taketombo (Naba)] Chieri-chan ni Hyoui Shite H Suru Hon (THE IDOLM@STER CINDERELLA GIRLS)

[Dagashi] Shisen no Saki AFTER (Junketsu no Owaru Hibi) [English] [jhenier13]

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

[Mokusei Zaijuu] A Virgin's Netorare Rape and Despair ~Hyougo Edition~ (COMIC Maihime Musou Act. 02) [English] =LWB=

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

[Touno Itsuki] Off Limit [English] [desudesu]

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

(SC35) [Yuugen Jikkou (Gonzaburou)] Gecchi Yuuto (Touhou Project)

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

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

[NG (Noda Gaku)] 山岳部一年

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

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

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

Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club

Fellatio Kenkyuubu - Fellatio Research Department

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

Nyuusan Shoujo I+II | Lactic Girl I+II

Fellatio Kenkyuubu Blowjob Research Club Ch. 3

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

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

(C78) [dicca (Suemitsu Jikka)] Korizu ni Josou Shounen Hon 4 - Norowarehime

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

(C77) [DG Project (Tokonaru)] Kyoukan no Cherii (Queen's Blade)

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

(C57) [Karumaya (Karma Tatsurou)] Azuki (Azuki-chan)

Kusuguri Goumon Teikoku 2

(C92) [Kaze no Kotowari (Kazamitiu)] Iowa to to Mechamecha Ecchi Suru Hon (Kantai Collection -KanColle-)

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

Twilight's Research | 暮光学习计划

Futanari Kenkyuu Dousoukai | Futanari Research Club

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

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

Binyuchousain Ayako | Busty Researcher Ayako

Zecchou Kenkyuujo | Orgasm Research Facility

JS Kenkyuukai | JS Research Seminar

[Department Y Research Institute] Bōkoku ōjo no matsuro

[Carn] Dere Nochi Torare [Decensored]

[Kunisaki Kei] Umi demo! Iinari Housekeeper (Kodomo Datte H Nano) [Chinese] [鬼畜王汉化组]

(COMIC1☆2) [JACK-POT (Jyura)] Mo... Mou Yurushite yo... Yuusha-sama (Dragon Quest III)

Dance! Tentacle Research Center - Seedbed-hen

[EKZ] Devil's Playground [English]

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

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

Oji Saimin 2 Oji-san Fusoku de Hatsujouki ga Tomaranai Meikko no Nonstop Semen Shiboritori Gyaku Rape

[Ether] Athlete In Stadium Ch. 1-2

Shinshoku no Deathscythe Ch. 7 Kessen

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

(C87) [Panda ga Ippiki. (Komizu Miko)] Kitakami-san to Teitoku ga Isshoni Kurasu Ohanashi. (Kantai Collection -KanColle-) [Chinese] [瓜皮子萌萌哒&无毒汉化组]

(Beckon of the Mirror 14) [BONUS CALL (Ocita Micawa)] Itoshi no xx rium - My sweetie -xx rium (Disney: Twisted-Wonderland)

Jitsu wa Kawakami no Hou ga Sessei Dekinai Setsu

Fellatio Research Department Epilogue

Sukesuke sensei o kansatsu

(C89) [Kaiyuu Kikaku (Suzui Narumi)] Kyou wa Motto Issho ni Isasete (Kantai Collection -KanColle-)

Two Girl's Suck-Suck Research Note

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

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

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

(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]

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

Research Fellow

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

SWEET MAGIC II

Research Love Make Presentation | Research Lab x Expression

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

Anata ni Sasageru Watashi no Subete

Insect Research Institute 2

(C95) [S Shoten (3e)] No Surprises (THE IDOLM@STER)

いちやゆめむすび

(C84) [Ninokoya (Ninoko)] Kirigiri-san, Sore wa Biyakudayo!! (Danganronpa) [English] {desudesu}

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

Fellatio Kenkyuubu | Blowjob Research Club

宵闇の星

Event Houshuu wa Kashima-san!!

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

[Haniya (Hanini)] Anzu-chan Omochikaeri (THE IDOLM@STER CINDERELLA GIRLS) [Digital]

[Akiyama Production (Mikazuki Shikou)] Train Hunter 3 (City Hunter)（chinese）

[Circle Ohigetan (Ohigetan)] Ohigebon-47 60 Pun 10000gil ni Narimasu☆4 | Ohigebon-47 60 Minutes for 10,000 Gils☆4 (Final Fantasy) [English] [cutegyaruTL]

(SC57) [Chirigami Goya & Fusuma go Ten (Shouji)] NickJaguar (Muv-Luv Alternative Total Eclipse)