Penis Research

[Type.90] Manabi no Sono [English] {Tadanohito}

Parallel World Eros & Swine

(Reitaisai 9) [Kakumei Seifu Kouhoushitsu (Radiohead)] Sado no Kokan no Futatsuiwa (Touhou Project) (English)

[Rei No Tokoro] Mahou no Susume

[Tetsujinex] Futa and Cho

[Saiyazumi] Watashi, Shishunki Chinpo ga Suki nan desu! - I love the Penis of Adolescent Boys

Shunkan Ch. 2

[Department Y Research Institute] Bōkoku ōjo no matsuro

Inma-san no Onaho Jijou 2

(C68) [Behind Moon (Q)] Dulce Report 6 [English] [SaHa] (Decensored)

[Satou Kuuki] Aisei Tenshi Love Mary Ch.1-6 [Digital]

[Hakidame no Koganemushi (Koganemushi)] Nikutai Henka Shoujo Yawa ~MaGal Kissa no Nanokakan~ (Kantai Collection -KanColle-) [Digital]

[Horihone Saizou] Niku No Ana | The Hole of the Flesh [English] [|NORM|]

[Jajala] 巨チンふたなり尿道姦漫画

さくらちゃんの自由研究1

[Noujiru Teishokuya] Penistic Hazard 2

[Touyu Stand (Touyu Black)] Amano Ichiyo 7 -Ingoku no Utage-

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

(Futaket 11.5) [Ani ga Saru (Takashi)] Tsukasa wa PENIS no SLAVE desu | Tsukasa Is a SLAVE to PENIS (Ensemble Stars!) [English] {Dark Mac & B.E.C. Scans}

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

EroSli!

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

Dokidoki Occult Kenkyuubu | Heart Pounding Occult Research Club

Mega Penis Shota ni Kanojo Netorasete Mita

[Anthology] EROGROS Vol. 2 [Digital]

[Kaguya] Futanarijima ~The Queen of Penis~ Ch. 1

[Shiranui Mokeiten] F no Megami [English][SaHa]

[Teterun] Kawaii Ano Ko wa Futanari-kei Nikushoku Joshi After (MuchiMuchi Dobyuu!) [English] [葛の寺] [Digital]

Girl's Fetish Figuration CHRONICLES

[Makita Aoi] Bizarre Paradise - Abnormal Jisen Tanpen Shuu -

[AskRay (Bosshi)] Sera Futa 2+ [English] [Digital]

[Oohashi Takayuki] Akuma no Shitsumon Ch.1-8 [English] [biribiri]

Fuuzoku Chinpo Jogakuen | Sexy Penis Women Academy

[Teterun] Kawaii Ano Ko wa Futanari-kei Nikushoku Joshi Ch. 2 [English] {Hennojin} [Digital]

[Kaguya] Futanarijima ~The Queen of Penis~Ch. 1 [Chinese] [鬼迷日眼的莱科少校个人川话化]

[Askray (Bosshi)] Inma-San no Onaho Jijyou [Digital] [English]

(C93) [Service Heaven (Azukiko)] Panther Kaitou no Shikkaku (Persona 5)

[Muchin] Futanari Musume ni Rape Sareru Dake no Manga

[148bpm (Kanon)] Yakumo-ke no Omocha 2 (Touhou Project) [Digital]

Futanari no Elf

[Calpish] The System of Girls That Grown Penis (Touhou Project) [Digital]

Demonica Sin

[Kaguya] Futanarijima ~The Queen of Penis~丨扶她島 ~女王之鞭~ Ch. 3 [Chinese] [沒有漢化]

Momo-An Volume 22

[Askray (Bosshi)] Inma-San no Onaho Jijyou [Digital]

[kunaboto] Pussy.Cat (Persona 5) [English]

Zecchou Kenkyuujo | Orgasm Research Facility

Gakuenchou Koudou Mariya o Chinpo Cleaner Nigou ni Otosu | The School Principals Penis cleaner, Double Team

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

Peni Parker no Usui Hon ni wa Ooinaru Sekinin ga Tomonau | Peni Parker's Thin Book Comes with great Responsibility

(C92) [Tiramisu Tart (Kazuhiro)] Reishuu Elf Series 2 - Reishuu no Elf Princess [English] [N04h]

[Teterun] Kawaii Ano Ko wa Futanari-kei Nikushoku Shoujo Ch. 2 [English] {Hennojin} [Digital]

Zettai ni Chinpo niwa Makenai in Neo Deava!

[Kimura Neito] Non-Human Life Ch.1-3 [English] {Doujins.com}

Sex Education at The Academy of Magic! – My Penis is the Smallest in the Class!

[MiruBeri] Exercise Bloomers Serifu & Manga Ari (Phantasy Star Online 2)

(COMIC1☆5) [Youkai Tamanokoshi (CHIRO)] SIDE DAKENESS (To Love-Ru Darkness)

Female Navigator Who Earns Money from Fishmen by Using Her Body

(C92) [Arsenothelus (Rebis)] Midare Saki Ningyo Hime (Midare Saki Joshuu Kaizoku Soushuuhen) (One Piece) [English]

[Shian (Ojii-chan)] Kuishinbou Takumin (THE IDOLM@STER CINDERELLA GIRLS) [Digital]

[Satou Kuuki] Aisei Tenshi Love Mary | The Archangel of Love, Love Mary Ch. 1-4 [English] {darknight} [Digital] [ongoing] [decensored]

[ONEGROSS (144)] Tanpen Densetsu 3 (Seiken Densetsu 3) [Digital]

QUEEN'S SLAVE4

[Suzuhane Suzu] Majuu Jouka Shoujo Utea [English] {doujins.com}

(C90) [Kakumei Seifu Kouhoushitsu (Various)] Matango (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [沒有漢化]

[Kimura Neito] Non-Human Life Ch.1-5 [English] {Doujins.com}

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

Penis no Dekasa de Subete ga Kimaru Sekai de Sochin no Boku ga Kisekiteki ni Te ni Ireta Kanojo wa Touzen no You ni Dekachin ni Netorarete Owaru | Human Rights Line

Penis Comparison NTR Kazusa

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

[Yamatogawa] Power Play!

[Horihone Saizou] Niku no Ana - The hole of the flesh.

Ma no Akumabarai 3

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

[Pretty Penis] Happeningirl. (To Love-Ru)

[Radiohead] マラコヴィア肛門闘争術概要 マラコヴィア少年肛門闘士の土俗的奇習について

[Satou Kuuki] Aisei Tenshi Love Mary | The Archangel of Love, Love Mary Ch. 1 [English] {darknight} [Digital] [ongoing] [decensored]

(Futaket 8.5) [Tapioca Box (Nyuuhin)] Futa Resort [English] [maipantsu] [Decensored]

(CR34) [Behind Moon (Q)] Dulce Report 4 [English] [SaHa] (Decensored)

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

(C92) [Youkai Tamanokoshi (CHIRO)] Ore-tachi no Youmagun Ou Boogie!! (Dragon Quest XI)

(C81) [Benichigaya (Stigaya)] Catt Shoku (Queen's Blade)

(C81) [Behind Moon (Q)] Dulce Report 14

(C89) [Takane no Hanazono (Takane Nohana)] Harashou! Gaiden Gisou Entotsu | Harashou! Sidestory: Camouflage Funnel! (Kantai Collection -KanColle-) [English]

2D Comic Magazine Monster Musume ni Okasaretai! Vol.1

(C92) [Aodouhu (Neromashin)] Houjou no Reizoku Elf 3 [English] [constantly] [Decensored]

[AskRay (Bosshi)] Sera Futa 2+ [Digital]

Reties no Michibiki Vol. 5

[we53] うさぎのうたげのこと (VOCALOID)

Inma-San no Onaho Jijyou 1.5

Zecchou Kenkyuujo 2 | Orgasm Research Facility 2

Kyokon Ma Kaizou! Zenbu Irechau |巨根魔改造，全部插进来了

(C58) [OZONE, Tougechaya (Various)] FUTANA☆WORLD (Various)

[Yukikagerou (KANZUME)] Tatta Hitori no Chinpo Kyouzai ~Seikyouiku ni Honki Sugiru Ritou de~ | The Only Penis Material ~On a Remote Island for Practical Sex Education~ [English] [adamar]

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

[Neromashin] Mezumesu | 馬頭牝 (Bessatsu Comic Unreal Ningen Bokujou Hen Digital-ban Vol. 6) [Chinese] [surely個人漢化] [Digital]

Dance! Tentacle Research Center - Seedbed-hen

[RAYNEX] Uchinoko Erohon

Peni Parker no Usui Hon ni wa Ooinaru Sekinin ga Tomonau

(Kemoket 10) [TEAM SHUFFLE (Trump)] Ijitte Miyo ka

[Satou Kuuki] Aisei Tenshi Love Mary | The Archangel of Love, Love Mary Ch. 1-3 [English] {darknight} [Digital] [ongoing] [decensored]

(C83) [Kotatsu de Mikan Chokubai Tokoro (Semahiro)] Chou Kyokon Futanari Shoujo vs Shoumei Shashin [English]

Movie Research Lovers

(Futaket 9.5) [Tapioca Box (Nyuuhin)] Futa Resort Nama [English] [Forbiddenfetish77]

[41] Revenge Sex with a World-Changing App - Joutai Henka Kaizou App de Gyakushuu Ecchi (Chapter 1-4) [English] [Tigoris Translates]

[Rosetta Stone (Teterun)] Tamatsuki Futa ga Yarareru Hon [English] {Hennojin} [Digital]

Shemale & Mesu Danshi Goudoushi C's HAVEN 3 Rod

[Suichuu White (Calpish)] Kaiin Chouaku Milky Poplar [Digital]

Macop - mckee gokubuto

[Inuteikoku (Mura)] Ikukon Shoujo [Digital]

[Kakumei Seifu Kouhoushitsu (RADIOHEAD)] Changeling [(C72) Sex Sphere] (Martian Successor Nadesico) [SMDC] [Incomplete]

Tsuihou Sareta Futanari Mahoutsukai ga Mesugaki Yuusha o Wakaraseru Hanashi 2 | A Story About An Exiled Futanari Mage Correcting A Brattish Hero 2

[Kurotoya (Kuroda Kuro)] Watashi to Sensei [English] [SaHa] [Digital]

Mega Penis Shota ni Kanojo Netorasete Mita | I Tried Letting A Kid With A Massive Dick Fuck My Girlfriend