Fellatio Kenkyu

[Wakana Hanabi] Hatsukoi to Fellatio to Seiin [Digital]

(C90) [Naruto Kenkyuusha (Hisakabe Oto)] Bi-SHUN (Bakuon!!)

[gallery walhalla (Kanoe)] Tateba Sokuhame Suwareba Fellatio Aruku Sugata wa Roshutsu Play (Battle Girl High School) [Digital]

Nama Onaho Konoha-chan

[Matsumoto Drill Kenkyuujo (Drill Eternal)] Tamakin (ToHeart 2)

(C91) [Nanashimushi Land (Nanashimushi)] Onaho Kenkyuubu! 1.11 | 飞机杯研究部 [Chinese] [黄记汉化组]

[Matsumoto Drill Kenkyuujo] Akuochi | Fallen to the Dark Side (COMIC X-EROS #5) [English] {desudesu}

(C80) [Matsumoto Drill Kenkyuujo] C80 Rakugakibon (Various)

Kenkyuu Koumoku_ Seishoku Koui

[Anthology] PLUM FE Vol. 2 [Digital]

Ochiba Nikki Another Page2

(Shotaful!) [Datsuryoku Kenkyuukai (Kanbayashi Takaki)] UNUSUAL

[Kurage Kenkyuusho] Drug and Drop

[Nyoninka Kenkyuujo] Chijoku Josou no Yoru

Enkou Kanojo to Kengakukai

Rika no Kenkyuushitsu ~ Chiteki na Rikei Onnano Seitai ~

[Datsuryoku Kenkyuukai (Kanbayashi Takaki)] Boku ga Shihai Suru Senpai [Digital]

[Takurou] Rica no Kenkyuushitsu ~Chiteki na Rikeijo no Seitai~ Ch. 1-6 [English] [Crystalium]

(C92) [Newtype Kenkyuujo (Kotowari)] MTY (Kantai Collection -KanColle-)

[Tanpopo Suisan+Ziggurat (INAGO)] Natsuyasumi no Jiyuu Kenkyuu Riko Choukyou 2-kaime ~Yagai de Zecchou Sasete Miyou!~ [Full Colour Version] [English] [xinsu]

[Newtype Kenkyuujo (Kotowari)] Ichiban HiAce ga Niau Kan (Kantai Collection -KanColle-) [Digital]

[Naruto Kenkyu Sha (Hisakabe Oto)] Atsui Natsu wa Yappari Reika da ne (DREAM C CLUB) [Digital]

Onaho Kenkyuubu! 1.11+2

(C93) [Minori Kenkyuujo (Minori Kenshirou)] Pouty Pukey Smile

(C92) [ARCHF (Riki)] AFK (Atsumare! Fushigi Kenkyuubu)

Fellatio girl illustrated book 3

[Datsuryoku Kenkyuukai (Kanbayashi Takaki)] Fujun Kankei 03 [Digital]

[Kotobuki Mairo] Clijo AV Kenkyuukai (COMIC Kuriberon DUMA 2021-11 Vol. 30) [Chinese] [cqxl自己汉化]

(C93) [Abarenbow Tengu (Izumi Yuujiro)] Kotori 15 (Fate/stay night) [Chinese] [盲鸡汉化组]

[M Kichiheya (Uchida Junta)] Chimera Kenkyuu File (Mother 3) [Chinese] [Decensored] [2007-08-13]

Seitai Kenkyuu no Theme wa Boku no Mama? Nakama-tachi to Sensei to no Natsu no Kyoudou Gakushuu

[Kuromahou Kenkyuujo (Nukaji)] Wareware wa Osanainode (Kemono Friends) [Digital]

[Katou Jun] Avatar Trance!

(C94) [Rico-ba (Rico)] Onii-chan to Sex Kenkyuu [Chinese] [山樱汉化]

Shisai Elf-san no Fellatio

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

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

[Zenra QQ] Fellatio Kouhai, Otouto ni naru

Fellatio girl illustrated book

JS Kenkyuukai | JS Research Seminar

(Futaket 12) [datsuryoku kenkyuukai (Kanbayashi Takaki)] Futanari Joshi to Gyaku Anal Gakkou Seikatsu

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

Shoujo Kaishun -Kyuushoku no Jikan- Fellatio Hen

ねこかわっ！

(C86) [Minori Kenkyuujo (Minori Kenshirou)] Roshutsu Joshi

(C85) [Matsumoto Drill Kenkyuujo (Naganoon)] ChitoChiyo Shimai no Unyou ni Tsuite (Kantai Collection -KanColle-)

Fellatio Research Department | Fellatio Kenkyuubu - Ch.01

[hal] Dokuritsu Fuki (Daienjou -Ikare Ikasare Iki Ikare-) [English] [CGrascal]

Fellatio Kenkyuubu | Departamento de Investigación de las Felaciones Ch. 1

Erina-sama no Renai Kenkyuukai. + Les Dessert

(C92) [Nanashimushi Land (Nanashimushi)] Onaho Kenkyuubu! 3 | 飞机杯研究部 3 [Chinese] [黄记汉化组]

[Shadan Katsudou (Kyuusuikei)] Fellatiosaurus VS Mahou Shoujo Kouhen (Puella Magi Madoka Magica) [English] [Shady Dealer] [Digital]

Natsu Yasumi no Saimin Jiyuukenkyuu

(Reitaisai 9) [Newtype Kenkyuujo (Kotowari)] Tenshi no Kaikata Shitsukekata CLIMAX (Touhou Project)

Tickle Seijin ni Yoru Kusuguri Energy Kenkyuu Report

(C92) [Nanashimushi Land (Nanashimushi)] Onaho Kenkyuubu! 3

NeuTRal Actor3

[Nagisa Eiji] Kabukichou Bad Trip 2 | 歌舞伎町 Bad Trip 2 Ch. 4-5+BL Award 访谈1-2+周年特典 [Chinese] [Digital]

[DL Mate] Joushiki Henkan Appli ~ Namaiki na Imouto ni Shikou wo Kakikaete Juujun Fellatio Houshi Sasete Mita

(C67) [Matsumoto Drill Kenkyuujo (NAGANOON, Nasu)] DRILL IMPULSE (Mobile Suit Gundam SEED)

[Blmanian] Beropi | Tongue Piercing (Se-Syun Sakari) [English] [desudesu]

[Kuromahou Kenkyuujo (Nukaji)] Reitaisai Off-Pako (Touhou Project) [Digital]

[Naruto Kenkyu Sha (Hisakabe Oto)] Dare no Shiwazaka Wakarimasu? (GJ-bu) [English] {Hennojin} [Digital]

(Futaket 13) [Nanashimushi Land (Nanashimushi)] Onaho Kenkyuubu! 2

[Ao Banana] Kozue Ganbaru (COMIC Shitsurakuten 2016-12) [Chinese] [丧尸汉化]

(Zettai Ryouiki 6) [Newtype Kenkyuujo (Kotowari)] Meitantei Shikkaku na Kanojo (Touhou Project)

Source of Happiness | Fellatio no Ehon Soushuuhen 2

Tomodachi no mama roshutsu jiyukenkyu

[Elfellatio (Jajala)] Helper☆ Elf Maid | Semen Loving Elf Maiden's Daily Household Chores [English] [Redlar]

(COMIC1☆13) [Ijou Nouryoku Kenkyuukaihatsu Kikou (Various)] Inousha Shoujo Kesson Goudou Kaijou Gentei Omakebon

(SC56) [Ajisaidenden (Kawakami Rokkaku, Takanashi Rei)] Kazamori Hakase no Chotto Ecchi na Kenkyuu ~Kouhen~ (UN-GO) [Chinese] [沒有漢化]

(Reitaisai 5) [Ishikiriba (Various)] Yagokoro Kenkyuushitsu - Yagokoro Lab. (Touhou Project)

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

[Neko wa Manma ga Utsukushii (Hisasi)] Erina-sama no Renai Kenkyuukai. 2 (Shokugeki no Soma) [Digital]

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

(C94) [Hiiro no Kenkyuushitsu (Hitoi)] Ochiba Nikki Another Page [Chinese] [無邪気漢化組]

Ochiba Nikki Another Page2

[Nusmusbim] Kuuruna Ane wa Posokoshi Kenkyuuin!! - My Cool Elder Sister Is a Worn-out Article Boffin!! (ANGEL CLUB 2019-11) [English] [SakuLENS] [Digital]

(C82) [Datsuryoku Kenkyuukai (Kanbayashi Takaki)] Shikotama!

[Takurou] Rica no Kenkyuushitsu ~Chiteki na Rikeijo no Seitai~ [Chinese]

[Kuromahou Kenkyuujo (wizakun)] Touhou Enquête Relay @ Chikashitsu (Touhou Project)

Inchuu no Naedoko

[Datsuryoku Kenkyuukai (Kanbayashi Takaki)] Ore wa Kawaii Onnanoko? [Chinese] [瑞树汉化组] [Digital]

Futanarikko Kenkyuu Channel

[Datsuryoku Kenkyuukai (Kanbayashi Takaki)] Omoi, Omoware. [Chinese] [个人汉化] [Digital]

(C82) [Minori Kenkyuujo (Minori Kenshirou)] Outo Switch

(COMITIA121) [B5 Doumei (RaTe)] NDG Soushuuhen 1 01~04

(COMIC1☆20) [Kakohimenoutuwa (Yuumazume)] Adult! Fushigi Kenkyuubu 4 (Atsumare! Fushigi Kenkyuubu)

[Kitsune Tsuki] Chinpo Shaburi no Renai Kenkyuu | Dick-Sucking Love Study (Love Lab) [English] =YQII=

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

(C84) [Newtype Kenkyuujo (Kotowari)] Yumemi Gokoro (Touhou Project)

(C63) [Matsumoto Drill Kenkyuujo (Drill Eternal)] Drill Vanguard (To Heart)

[Yuuwaku Gijutsu Kenkyuusho (Chinbotsu Tower)] Succubus ni Yoru Saikou no Sainan [English]

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

Marugari Jigokuhen

(C88) [Choujikuu Yousai Kachuusha (Denki Shougun)] Girl-chan Kenkyuuchuu (Splatoon) [Sample]

[Takurou] Rica no Kenkyuushitsu ~Chiteki na Rikeijo no Seitai~ [Chinese]

[Naruto Kenkyu Sha (Hisakabe Oto)] Woo!!! K2K (Dream C Club) [Digital]

(C94) [Sniff Dogs (Ujiie Moku)] Pedoou to JS Anal Kenkyuukai (Ryuuou no Oshigoto!) [Chinese] [三堆木头个人汉化]

[Matsumoto Drill Kenkyuujo (Naganoon, Kazumi Yoshiyuki)] Naka-chan wa Zettai Rosenhenkou Shinaindakara! (Kantai Collection -KanColle-) [Digital]

Shiburin Kenkyuu suru

(C97) [Kuromahou Kenkyuujo (Nukaji)] Ali-channel 1+2+3 Follower-san-tachi ni Otomari-Off Asa made Ochinchin Review Namahousou | Ali-Channel 1+2+3 All-night Penis Review Livestream Sleepover at a Follower's Place [English][Tiramisu]

[Kuromahou Kenkyuujo (Nukaji)] Saimin Shippai - Sensei wa Dou Shiyou mo Nai Baka desu [Digital]

Nijiiro no Kenkyuu | 虹色的研究

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

(C90) [Naruto Kenkyu Sha (Hisakabe Oto)] Bi-SHUN!! (Bakuon!!) [Chinese] [塔布里斯個人漢化]

[Matsumoto Drill Kenkyuujo (Drill Eternal, NAGANOON, Nasu)] Houkago ○○ Time (K-ON!) [Digital]

[Newtype Kenkyuujo (Kotowari)] Akatsuki to Hibiki no Oshiete А・Б・В (Kantai Collection -KanColle-) [Digital]

(COMIC1☆7) [Datsuryoku Kenkyuukai (Kanbayashi Takaki)] Aniki ni Urarete Hitobanjuu 2 | My Brother Sold Me, So I Got Fucked All Night Long 2 [English] =SW=

(Shota Scratch 22) [Datsuryoku Kenkyuukai (Kanbayashi Takaki)] UNBALANCE

Adult! Fushigi Kenkyuubu

[LRIG Lab (Various)] LRIG Kenkyuu Nisshi 2017 Harugou (WIXOSS)

(SC2017 Summer) [Ninokoya (Ninoko)] Shoujo Kaishun -Kyuushoku no Jikan- Fellatio Hen

(Houraigekisen! Yo-i! 25Senme!) [Newtype Kenkyuujo (Kotowari)] Ichiban Youna Tsuma ga Niau Kuchikukan (Kantai Collection -KanColle-)