Research Felatio

(C67) [YOKOSHIMAYA. (Yokoshima Takemaru)] LOVE LOVE CASTER (Fate/stay night)

Himekawa

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

[Thrylos (Suu)] Minazuki-san to Hanayome Shuugyou (Emil Chronicle Online) [Digital]

Two Girl's Suck-Suck Research Note

(C93) [Beicon (Beijuu)] Thoroughbred Early Days (Kemono Friends)

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

Chaldea Heaven Shishou Shishou

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

シてるの、見せて

COMIC LO 2010-05 Vol. 74

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

[RaTe] Penis-sama’s Powers 1-3 (English)

Shuumatsu no Gum Chijo

[AHM (Inu-Blade, Lact Mangan)] Kanojo o Nakasenai Youni Suru BK201 no Houhou | BK201's Method To Not Make Her Cry (DARKER THAN BLACK) [English] [Flatopia] [Digital]

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

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

[Kazasuzu] PuriPuri Mermaid 1

[Dramus] Kurokami no Ko NTR Manga

(Reitaisai 16) [Nanmin Festival (Gibuchoko)] Komeiji Shimai no Docchi no Eroi Show (Touhou Project)

Moushiwake Arimasen.

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

Twilight's Research | 暮光学习计划

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

Okoi Omakebon Vol-04

(C83) [life (Haga Yui)] SMILE DEBUT (Smile Precure!)

(C77) [Tsurupeta (Various)] Tsurupeta Kenkyuu Houkokusho "Shin Hissatsu Waza no Kyoufu " - Turupeta Research Report

Jikan Teishi de Tanetsuke Choukyou ~Namaiki Onna-tachi ni Fukushuu Rape!~

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

[Neko to Hato (Hatoya)] Que sera sera (Kiddy Grade) [English]

Attack on Research

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

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

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

(C94) [Kunseidou (Bacon)] Chaldea NTR Nanpa Beach (Fate/Grand Order)

Research Fellow

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

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

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

[Department Y Research Institute] Bōkoku ōjo no matsuro

Swapping Party!!

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

[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

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

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

Research of Barnaby Brooks Jr.

Childhood's Friend Diet!

Dance! Tentacle Research Institute

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

(C88) [Kanten Jigenryuu (Kanten)] ZE-EN Kyou Taiken Nyuushin (Granblue Fantasy)

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

oshietekudasai！arisukun How to G

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

Mahou Tsukai Sakusei Kenkyuu | Witch's Semen Milking Research

Sekkasshoku wa Suki desu ka? 2

Zecchou Kenkyuujo | Orgasm Research Facility

[Doronuma Kyoudai (RED-RUM)] Futa On Dai-Yon Shou | A Certain Futanari Girl's Masturbation Diary Ch.4 - FutaOna 4 [English] [2d-market.com] [Decensored] [Digital]

Kuchibashi_ni_Cherry

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

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

Bowsette's Research

Magical Occult Research Girl Defeated

Movie Research Lovers

Insect Research Institute 2

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

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

Fellatio Kenkyuubu | Blowjob Research Club

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

(C91) [ANCHOR (Mutou Mato)] MY LITTLE MAID .03

(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]

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

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

[REI's ROOM (REI)] EIN REENCOUNTER (Mahou Shoujo Lyrical Nanoha) [Chinese] [2007-07]

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

JS Kenkyuukai | JS Research Seminar

[kanabun] パパっ子倶楽部 [進行中]

Hitozuma Saichoukyou Nisshi

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

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

[Furitendou] Uraroji no Bitch Jidou Hanbaiki de Classmate o Katte Mita

(C75) [T2 ART WORKS (Tony Taka)] Botan Nabe (Clannad) [Chinese] [飞雪汉化组] [Decensored]

Yotta Hitozuma ni Oishiku Itadakarete shimatta

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

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

(C85) [Jitaku vacation (Ulrich)] Ore wa Imouto ni Katenai.... (Kantai Collection -KanColle-) [English] [constantly]

(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]

(CR28) [Bubble Company (Tenteko)] Kodomo Oukoku 8

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

To Love-Ru - Selfish Ch3

Garigari 47

Beast Trail MesuKemo Shuu

Roshutsukurū-chan 2

雌ドラフ調教

Fellatio Research Department Epilogue

[Ochikonium (Terada Ochiko)] Kyojo Janee Kyodai Musume da! [Digital]

An Angels Duty14 - Our Beloved Mother Superior

GLORYHOLE

(C89) [Ra-raradan (Ouka)] Touhou Paradise Vol. 4 (Touhou Project)

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

Research Love Make Presentation | Research Lab x Expression

(C80) [Mahirutei (Izumi Mahiru)] Cecilia Style (IS <Infinite Stratos>) [English] [RapidSwitch]

[Kisetsu no Tawamure] Sosou Furyou 2

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

Jijing no Uni to Tori ga Hikkurikaette Jijing to Jici de Oosawagi Suru Yatsu

Oikawa Bokujou no Chichi Shibori Taiken Tour

(C78) [EPI (Tatsumi Neon)] A square Ⅲ (Ragnarok Online)

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

Aoi Mio Tabeta

Fellatio Kenkyuubu | Blowjob Research Club Ch. 2

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