Fellatio Research Clibwebh

[Engetsuten (Touno Tatsuki)] Dream F Club

(C87) [GFF (Kuribayashi Chris)] TRUE END + Omakebon (Smile Precure!)

[JON (Chupimaro)] Netto! Fellatio Koshien [Digital]

(C94) [Mesuman Teikoku (Kosuke)] DAVINCI-N-CODE (Fate/Grand Order) [English] [Nishimaru]

[ぼるせん] トイレポータル[中国翻訳]DL版

[Department Y Research Institute] Bōkoku ōjo no matsuro

Gori-chan Sensei

COMIC Unreal THE BEST Fantasy Doujinshi Collection [Digital]

Fellatio no Tenshi - Fellatio Angel

(C93) [Daisan Shinsekai (Fumikage)] Futanari Maria Ero Trap Dungeon (Senki Zesshou Symphogear)

[Zonda] Fellatio Kenkyuubu Saishuuwa (COMIC Mugen Tensei 2023-01) [English] [Digital]

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

Fellatiosaurus VS Mahou Shoujo Zenpen

(C94) [Mesuman Teikoku (Kosuke)] DAVINCI-N-CODE (Fate/Grand Order)

陥落調停者

(Futaket 8) [Arsenothelus (Rebis, Chinbotsu)] Zecchou Trans Poison (Street Fighter X Tekken)

(C82) [Kakumei Seifu Kouhoushitsu (RADIOHEAD, Yuuge, Sexyturkey)] Watashi ga Sex Dekinai no wa Dou Kangaetemo Koitsu ga Warui! (Watashi ga Motenai no wa Dou Kangaetemo Omaera ga Warui!)

[L.P.E.G. (Marneko)] Maiden Carnation | 少女康乃馨 [Chinese] [灰灰漢化] [Digital]

(C89) [Nijiiro Suisho (Nanashiki)] Erohon o Yondetara Kinjo no Onee-san ni Fellatio Sareta Hanashi [English] [TreePerception]

(C91) [Sakurai Dai Energy (Sakurai Energy)] Reverse×Reverse (Touhou Project)

Ikari-kun, Sayonara

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

Hentai Juuseikou Chinpoko ~ Mesuiki Delivery ~

[Akuochisukii Kyoushitsu (Akuochisukii Sensei)] Zetsubou Princess (Precure Series) [Digital]

(Futaket 11.5) [AskRay (Bosshi)] Sumika no Houkago 072 TIME [Chinese] [T妹个人汉化]

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

K2 Style

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

[Konnyaku Nabe (magifuro Konnyaku)] Futanari Onani no Susume [Digital]

メアリー姫のふたなりオナ

Two Girl's Suck-Suck Research Note

Fellatio Research Department Epilogue

[Shiwasu no Okina] Fellatio Club [English]

[RaTe] Sokonashi Tsuyudaku Clinic - Semen Clinic [English] [Tigerhorse]

Futanari nanode Gakkou Seikatsu ga Fuan desu 3

Chotto Koime no CG Shuu Futanarian!

Binyuchousain Ayako | Busty Researcher Ayako

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

Papakatsu? Iie... Futakatsu desu!

(C94) [Mesuman Teikoku (Kousuke)] DAVINCI-N-CODE (Fate/Grand Order) [Chinese] [不咕鸟汉化组]

(C95) [INSERT (KEN)] Boku dake no Bakunyuu Ona-maid Dai Ninki Bakunyuu Fellation Idol Fuuzoku Taikenki Shinsaku CG Shuu -Taikenban-

[Zonda] Fellatio Kenkyuubu Ch. 4 (COMIC Mugen Tensei 2022-06) [English] [Cuddlebuns] [Colorized] [Decensored] [Digital]

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

(C80) [OZONE (Marumiya)] Sorceress no Natsu, Amazon no Natsu. | Summer of Sorceress, Summer of Amazon (Dragon's Crown) [English] [thetsuuyaku]

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

[L.P.E.G. (Marneko)] Maiden Carnation [English] [Sn0wCrack] [Digital]

[Kudamono Monogatari (Kuroishi Ringo)] Josou Ryman 3

[Dulce-Q] Niyotaika Ryoujoku Kensa

JS Kenkyuukai | JS Research Seminar

[Madoromi Youenjou] Chichi Buru Mankai!! vs Leotard Kansei-ban (Dragon Ball Z)

Avatar Trance! Ch. 1-5

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

[B5 Doumei (RaTe)] NDG05 (ato) [Digital]

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

[Miyabe Kiwi] Fellatio no Tenshi - Fellatio Angel

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

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

[NeWMeN] Secret Plot [Shinsouban] Ch. 1-2 [English]

[Shinozaki Rei] Camp Mission

Futa Ona Honey

[Stapspats (Hisui)] Gensoukyou Futanari Chinpo Wrestling Ecstasy 4 Yukari VS Marisa (Touhou Project) [Digital]

Sawanoi Shitei

[Juubaori Mashumaro] Pulse

[NAVY (Kisyuu Naoyuki)] Okuchi no Ehon -Honsai wa Waga ja !- | Mouth's Picture book -The true wife is me-! (Fellatio no Ehon Soushuuhen Vol. 2) (Sekirei) [English] =Wrathkal+EZRewriter= [Digital]

[Kobayashi Shounen] Kairaku Izonshou

(C51) [Escargot Club (Juubaori Mashumaro)] Kichijou Shoujo (Sakura Taisen)

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

[Majikoro] Turbo Switch

[Akuochisukii Kyoushitsu (Akuochisukii Sensei)] Zakenna Setsuzoku (Futari wa Precure) [Digital]

[Touge Hiro] Chotto Dake Mirai Gakuen ni Youkoso | Welcome to Near-Future Academy [English] [SaHa + LWB]

[GT-Wanko] HOT CUM 4 U (THE IDOLM@STER)

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

[NG (Noda Gaku)] GalHume Bon 1 - Galka to Hume no Yoakemae (Final Fantasy XI) [Digital]

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

[fugurisensen] Futanari JK (ongoing)

(C57) [Derolian (Shark Yaminabe)] Nikushoku Diamond (Dororon Enma-kun, Urusei Yatsura)

(C87) [Hakujira Uminekodan (Shimuu)] Lolibote Nanoha Bitch BREAK-f (Mahou Shoujo Lyrical Nanoha)

(C77) [Kaientai (Shuten Douji)] Fellatio F Club (Dream C Club)

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

Futanari Shasei Kanri!

[Go! Go! Heaven!!] Cocky Young Sister 08

Momo-an Vol. 9

Shoukan Sareta Onnanoko wa Minna Futanari Kaizou Sarechau Hei Chaldea

(Futaket 13.5) [Efuya (Messy)] Futanari Elf-chan [English] [babaluum]

Futanari Gakuen no Furyou Shoujo

Ikinari Hajimeru Fellatio Manga

COMIC MUJIN 2011-01

[Gura Nyuutou] Futa Mata [English]

Futanari Works 1 Kansen

[Doronuma Kyoudai (RED-RUM)] Futa Ona Dai San Shou | A Certain Futanari Girl's Masturbation Diary Ch.3: FutaOna 3 [English] [2d-market.com] [Decensored] [Digital]

[Algolagnia (Mikoshiro Honnin)] St. Margareta Gakuen COLORFUL! Vol. 4 [English] =LWB=

Reverse×Reverse

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

[Mda Starou] Rimuru-sama skin fellatio (Tensei Shitara Slime datta Ken) [Chinese] [君日本語本當上手漢化組]

(Futaket 8.5) [Behind Moon (Q)] BehindMoon Recycle 2

(C93) [condiment moderately (Maeshima Ryo)] Hiru no KiraPâti e Youkoso (KiraKira Precure a la Mode) [English] [bluestar1]

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

Limited Special Edition Ranka and Mama

[Kichijouji Kitashirou] Shiri Oukoku | Anal Kingdom

[JINJIN] unnamed CCS doujin (original language)

[A-10] GIRL? NEXT DOOR

(C95) [Syunkan Saidaihusoku (Pony R)] Kyonyuu Seijo ga Noukou na Shitawaza de Kurikaeshi Nuite Kureta Ato ni Honban Sasete Kureru Fellatio Fuuzoku (Fate/Grand Order)

[Naya (Papermania)] Inran Maso Josouko - Ikuko-chan no Mousou SM Nikki

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

Insect Research Institute 2

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

For Love ~Kasuga~ | Fellatio no Ehon Soushuuhen 2

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

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

[Zenra QQ] Fellatio Kouhai, Otouto ni naru [Chinese] [空想少年汉化]

Itsumo no Yatsu 2020・11・3

Kyonyuu Seijo to Ouhi ga Noukou na Shitawaza de Kurikaeshi Nuite Kureta Ato ni Honban Sasete Kureru Fellatio Fuuzoku

(C89) [Nijiiro Suisho (Nanashiki)] Erohon o Yondetara Kinjo no Onee-san ni Fellatio Sareta Hanashi

[Caramel Dow] Inshoku

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

[Machino Henmaru] Sawayaka Abnormal - Freshness Abnormal

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

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

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

Fellatio Iinchou

Asa Onna na Ore to Futanarikko Ojousama 3 LIVE A LIVE

Nurunuru Fellation Summer

Shin Hanzyuuryoku 15

FutanaLife Vol. 2 Mikanseiban

FUTABON

(Futaket 3) [AskRay (Bosshi)] Futabu!! [Decensored]

Research of Barnaby Brooks Jr.

Futana Wife Vol. 2

[Maho] Chokitto Dullahan! [Digital]

(C87) [Fleur 9 Pri (Kitahara Eiji)] Inran Kagura - Shoujotachi no Inkei - San (Senran Kagura)

(Futaket 17.5) [Silicon Jichou (Condessa)] Shucchou-saki de Jii Suru 32-sai

[Minor Boy] Carina no Bouken 5 Biki Goumon | Torture of the Beautiful Princess

[Katou Jun] Avatar Trance! Ch. 1-5 [Chinese] [鬼畜王汉化组] [Digital]

(Futaket 17.5) [Silicon Jichou (Condessa)] Shutchō-saki de Jii Suru 32-sai

Futanari Joshi Shin'nyuu Shain Kenshuu

(C84) [L.P.E.G. (Marneko)] Asa Onna na Ore to Futanarikko Ojousama 4 Tomodachi mo Taisetsu ni?

[Zonda] Fellatio Kenkyuubu Ch.4 (COMIC Mugen Tensei 2022-06) [Chinese] [瓜皮汉化] [Digital]

(Shuuki Reitaisai 4) [Nacchuushou (Amazon)] Taimanin Yuuka (Touhou Project)

Maidencarnation3-Abyss Dresser-

Fellatio Suarus VS Mahou Shoujo Zenpen

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

Nyan Nyan Fuunyan

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

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

(Kouroumu 9) [Natsuiro Terrace (Kishimasa)] Futanari Hijiri ●REC (Touhou Project)

Portal Mitai na Yatsu 1-3

Futanari Ism

[Konnyaku Nabe (magifuro Konnyaku)] Futanari Shinsatsu Time [English] [Digital]

Shittsui no Otome-tachi

[Nisin Sansin (Nisin)] Futanari Jogakuin - Kokubunji Hajime no Doudoutaru Chitai o Miyo!