Fellatio Resear

Reverse×Reverse

Manatsu no Yukimatsuri

Insect Research Institute 2

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

Futanari nanode Gakkou Seikatsu ga Fuan desu 3

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

(Futaket 13.5) [ASTRA'S (ASTRA)] 50%-4 (Ranma 1/2)

[GALAXY STYLE (Yoshida Inuhito)] GBFT [Digital]

[Navy] Source of Happiness | Fellatio no Ehon Soushuuhen 2 (Fairy Tail) [English] [EHCOVE]

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

Houratsu na Ariake-chan

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

[Q] Kagai Lesson (Fujouri na Nyotai Kousoku) [Digital]

[Sakaiya (Kozirow)] ￮￮ Shinai to de rarenai heya [Digital]

[A-mania9's (The Amanoja9)] BEHAVIOUR+8 Chou☆Koikuchi [Digital]

(SC2017 Summer) [Ninokoya (Ninoko)] Shoujo Kaishun -Kyuushoku no Jikan- Fellatio Hen [Chinese] [转尾巴猫汉化]

[Ninnindo (Tonsuke)] N Zukan ~Fellatio Hen~ (Various)

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

(C94) [SERVICE BOY (Hontoku)] Daute Bitch D Sea

(C76) [-unlimited (Asakura Yuu)] Tama Ran [English] {doujin-moe.us}

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

[Katou Jun] Avatar Trance! [Chinese] [鬼畜王汉化组] [Digital]

(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]

(Futaket 8) [Behind Moon (Q)] Dopyudopyu Sunshine (Jewelpet Sunshine)

[Kakumei Seifu Kouhoushitsu (RADIOHEAD)] Marakovia no Haisetsu Girei - Jira-tou, Motawa-zoku no Ryousei Shoujo Moko, Ryouseisha no Tsuihou Bunka to Initiation (Watashi ga Motenai no wa Dou Kangaetemo Omaera ga Warui!) [Digital]

[Hidiri Rei] UK -UNMORAL KIDs- [English] [SaHa]

Otaku no Youjinbou - Futanari Tatsuyo no Higyaku Mousou

Futanari Ism

GBFT

Fellatio Research Department Epilogue

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

[Wakana Hanabi] Hatsukoi to Fellatio to Seiin

[Katou Jun] Avatar Trance! Ch. 1-4 [Chinese] [鬼畜王汉化组] [Digital]

[Jamming] Maison no Onna

Limited Special Edition Ranka and Mama

[HeMeLoPa (Yamada Shiguma)] Kitto Kawaii Otoko no Ko Dakara - Douwa hen - (Moyashimon) [English] [mysterymeat3] [Digital]

[Calpis Koubou] Shinomiya Yuki no Futanari Onanie Roku

[Ani ga Saru (Takashi)] Boku no Kanojo wa Futanari Mazo [Digital]

[Akuochisukii Kyoushitsu (Akuochisukii Sensei)] Honjitsu no Haiboku After Futanari Kaizou Touyaku Auction he no Shuppin (Original) [Digital]

[Inoue Yoshihisa] Himitsu no Engeki | The Secret Stage

(Mou Nanimo Kowakunai 29) [Shadan Katsudoh (Kyuusuikei)] Fellatiosaurus VS Mahou Shoujo Chuuhen (Puella Magi Madoka Magica)

Chinpotsuki Ijimerarekko Ch. 10-13

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

Maria-sama ga P o Miteru 2

[Efuya (Messy)] Futanari Elf-chan [Digital]

COMIC MASYO 2013-01

Shittsui no Otome-tachi

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

Shoujo Kaishun -Kyuushoku no Jikan- Fellatio Hen

Futanari Mama wa Yokkyuu Fuman

(C74) [Rei no Tokoro (Kuroarama Soukai)] Usagi Drops FULL! (Gotcha Force) [English]

(CR35) [B5 Doumei (RaTe)] Maria-sama ga P o Miteru 2 (Maria-sama ga Miteru)

[L.P.E.G. (Marneko)] Natsume no Mousou Ona Milk [Digital]

[Anthology] Futanarikko Lovers 4

[A-mania9's (The Amanoja9)] BEHAVIOUR+8 Chou☆Koikuchi [Digital] [English] [N04h]

[Konnyaku Nabe (magifuro Konnyaku)] Futanari Shinsatsu Time [Chinese] [沒有漢化] [Digital]

Reverse×Reverse

Shikkoku no Dekachin ni Netorareta Hitozuma 10nin no Fellatio Zukan&ShousaiKeii

Rimuru-sama skin fellatio

Fellatio Iinchou | Blowjob President

[Naya] Futanari Mazo Onna Kyoushi Megumi | Futanari Masochist Female Teacher Megumi [English] =SW=

[Trump] Dennou Gakuen Eden Kuukan Waikyoku Souchi | Playing with Portals [English]

(Futaket 12) [Miura Iota (Miura Iota)] Fusou & Yamashiro Noukou Futanari Juice (Kantai Collection -KanColle-)

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

[NAVY (Kishuu Chokkou)] Fellatio no Ehon Soushuuhen Vol. 1 (Various) [Digital]

[Sannyuutei Shinta] Higyaku Inu Kyoudai | Masochistic Mutt Brother & Sister (COMIC Mate legend Vol.3 2015-06) [English] {5 a.m.}

[Ikesuga Yuuna] Mittsu no Jouken

(Shuuki Reitaisai 3) [Konnyaku Nabe (magifuro Konnyaku)] Yanagi no Shita no Futanari Onanie Show (Touhou Project)

[Shinozaki Rei] Blue Heaven 2

Futanarikko LOVE 2

[Zenra QQ] Fellatio Kouhai, Otouto ni naru

(C80) [OZONE (Marumiya)] Sorceress no Natsu, Amazon no Natsu. (Dragon's Crown)

[Trump] Dennou Gakuen Eden Kuukan Waikyoku Souchi

(C80) [LOWHIDE PROJECT (LOWHIDE) Eroerobinbin (One Piece)

[NeWMeN] Secret Plot [Shinsouban] Ch. 1-5 [English]

(CCOsaka72) [KEBERO Corporation (J.J)] Seishi Shitataru Yaminonakade... | Sperm Drops in Darkness (Neon Genesis Evangelion) [English]

Fusou & Yamashiro Noukou Futanari Juice

Futanari Joshi Shin'nyuu Shain Kenshuu

[JinJin] FutaSuki! Ch. 1, 3-6 [English] =SW=

Fellatio mo Gokkun mo Kami Koki mo Bukkake mo Yurushite Kureru Toi Kuchi En Kaori-chan

[Trump] Futanari Masturbation Festival 1 (English)

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

Twilight's Research | 暮光学习计划

(C100) [Night FUCKERS (Mitsugi)] G-cup Kyokon Doutei Shojo na Seiso-kei Futanari Oneesan Nanao Soushuuhen

Futsu Kimimura Itaike Hentai Inbi

[Navy (Kisyuu Naoyuki)] Okuchi no Ehon Ai Yueni -Kasuga- | For Love ~Kasuga~ (Fellatio no Ehon Soushuuhen Vol. 2) (Sengoku Basara) [English] [EHCOVE] [Digital]

Zecchou Kenkyuujo 2 Orgasm Research Facility 2

[Master Volume (Jyujyo)] Hard Minimal Trip 3 (Ichigo Mashimaro, Dragon Quest III)

Futanari Suzuran-chan

Shin Hanzyuuryoku XV

[Trump] Dennou Gakuen Eden Kuukan Waikyoku Souchi | Playing with Portals [Chinese][七萌个人汉化] [Decensored]

Nikuhisyo Yukiko 37

Daughter and Father Marriage - Miyuki's second fellation diary

(C86) [GuruGuru Honpo (Yanagawa Rio)] ANDROGYUNOUS

Dance! Tentacle Research Center - Seedbed-hen

[Sangenshokudou (Chikasato Michiru)] Space Nostalgia 7

Kanraku Chouteisha

(Futaket 3) [YOMOTHUHIRASAKA (bbsacon)] Soura Bansho (Shinrabansho Choco)

[Zenra QQ] Fellatio Kouhai, Otouto ni naru [English] [Yuuchen]

[Zenra QQ] Dekachin Bitch Kun no Seikatsu

(Futaket 17.5) [Silicon Jichou (Condessa)] Shutchō-saki de jii suru 32-sai

COMIC MUJIN 2011-01

[Tsuchinoko Kyoukai (Tsunoda Saburoo)] Fellatio ～ Baka Ichidai Sekai Seiha Hen (Bishoujo Senshi Sailor Moon)

[Kichijouji Kitashirou] Shiri Oukoku | Anal Kingdom

[Fuusen Club] Inchoukyou Maika | The Obscene Training of Maika [English] {Magnificent Bastard}

(C99) [Atsukiri Youjo (Sukiyo)] DarFuta!! Futanari Dark Elf Super Onanii no Maki

Futanari Kenkyuu Dousoukai | Futanari Research Club

(C92) [aka (Cevoy)] Warawa no Yome Ni (Fire Emblem if)

Onna Kishi to Futanari no Noroi | The Lady Knight and the Futanari Curse

(C91) [NAMANECOTEI (chan shin han)] Buta-Chun ~Strip Futanari Fighter~ (Street Fighter)

[Trump] Secret Play The Male and Female Principles

[Katou Jun] Avatar Trance! [Digital]

Mesu Jokukan no Miboujin

Fellatio Queen Reiko no Nichijou

Fellatio girl illustrated book 2

(C85) [NAMANECOTEI (chan shin han)] Sailor Milky Club (Sailor Moon)

(Futaket 3) [AskRay (Bosshi)] Futabu!! | Futa Club 2 [English] [SaHa]

(C88) [Eroquis! (Butcha-U)] DELIGHTFULLY FUCKABLE AND UNREFINED FELLATIO DAY! [English] {thetsuuyaku}