Urethral Development

Development Diary Ch.1 – Chii-chan Development Diary 1

[Developing Person(Hatten Tojounin)] Pink Slime [English] [head empty] [Digital]

[R-gen] Seishoku Kaihatsu Torawareta Elf no Choukyou Jikken | Sexual Development - Torture Training of Captured Elf (Mesu Hana ga Ochiru Toki) [English] [MTL] [Digital]

[Solar System Development Organization (Kinako)] Sleeping Monster (Durarara!!)

Development Diary Ch.3 – Chii-chan Development Diary 3 {2d-market.com}

[Nekohakushaku] Boku no Mama-chan (43) Kaihatsu Nikki 1 | The development diary of my Mama-chan 1 [English] [Pandora's actor]

[Developers (Nagasode)] Eve-chan wa Shokushu Pants no Ejiki ni Narimashita. | Eve-chan Fell Prey to the Tentacle Panties. [English] {Hennojin} [Digital]

(Reitaisai 19) [Rocket Chousashitsu (Koza)] Nitori-san wa Kaihatsuchuu | Nitori-san is Developing (Touhou Project) [English] [Haj3]

Koe | Voice

(C53) [Studio Mukon (Zyaroh Akira)] SUPPLEMENT AND DEVELOPMENT (Battle Athletes Victory, ToHeart, Darkstalkers)

[Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki Kouhen ~Ochita Moto Junjou Yuutousei wa, Chuunen Kyoushi no Mesuinu Onaho~ | Chizuru-chan Development Diary Part Two [English] {2d-market.com} [Decensored] [Digital]

Futanari Choukyoushi ni Kaihatsu Sareru Shota | Boys Getting Developed by Futanari Trainers

Futari wa Choukyou Game no Ejiki ni Narimashita. 2

Development Diary Ch.5 – Chizuru-chan Development Diary 1

[Developers (Nagasode)] Kaeshite! Boku no Clitoris 2 Inma no Iinari Dosukebe Choukyou | My Clitoris 2: The lewd devil's humilating training [English]

[Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki Swapping Battle Hen | Chizuru-chan Development Diary Extra [English] {2d-market.com} [Decensored] [Digital]

[Muchakai (Mucha)] Mako-chan Kaihatsu Nikki 2 -Netorare… Itsuwari no Shotaiken- | Mako-chan's Development Diary 2 [English] {2d-market.com} [Decensored] [Digital]

Shinseki no Onnanoko ga Kyuuseichou Shite Bakunyuu ni Narimashita | A relative of yours develops suddenly and gets MASSIVE TITS

(C87) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki 2 | Development Diary Ch.6 – Chizuru-chan Development Diary 2 [English] {2d-market.com}

(C86) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki | Chizuru-chan's Development Diary [English] [Doujin-Moe]

[Cafe Unlimited (Hiiragi Masaki)] Ryoujoku! Sennyuu Sousakan ~Sankaku Mokuba Nyoudou Seme Hen~ | Humiliation! Undercover Investigator 2 ~Wooden Horse & Urethral Torment~ [English] [Digital]

(COMITIA98) [Muchakai (Mucha)] Chii-chan Kaihatsu Nikki 2 | Development Diary Ch.2 – Chii-chan Development Diary 2 [English] {2d-market.com}

[MM] Deep Kiss Development Story (Hoshikawa Sara)

(C88) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki 3 | Development Diary Ch.7 – Chizuru-chan Development Diary 3 [English] {2d-market.com}

Chii-chan's Development Dairy 4

Chii-chan's Development Dairy 2

[Nengaranenjuu (Nengara)] Kono Ai wa Yamai ni Nite Iru (Bangai Hen) Shitsuke no Kura | This Love is Like an Illness (Extra Chapter) Storehouse Development [English] [Digital]

[Medaka Kenichi] Hatsuiku Yokujou | Development Bath (COMIC LO 2007-02) [English]

Chizuru-chan's Development Diary

[Okano Ahiru] Hanjuku Developer - The immature developer

Seishoku Kaihatsu - Torawareta Erufu no Chōkyō Jikken | Sexual Development - Torture Training of Captured Elf

Sepia-chan wa Choukyou Machine no Ejiki ni Narimashita. 2

[Mujitan (Tsumugie)] Kyonyuu Kuchikukan Hatsuiku Chousa Shirei San | Big Titty Destroyers' Development Survey Order (Kantai Collection -KanColle-) [English] {DKKMD Translations} [Digital]

(C91) [Roubai-tei (atahuta)] Tanoshii Seieki Bokujou -Kaihatsu Hen-｜Happy Semen Farm -Development Branch- (Brave Witches) [English]

Chizuru-chan Kaihatsu Nikki 3 | Development Diary Ch.7 – Chizuru-chan Development Diary 3 {2d-market.com}

[Developers (Nagasode)] Sepia-chan wa Choukyou Machine no Ejiki ni Narimashita. | Sepia-chan Fell Prey to the Training Machine [English] {Hennojin} [Digital]

[Medaka Kenichi] Hatsuiku Yokujou | Development Bath (COMIC LO 2007-02) [English] [Bakachin Manga Translations™] [Incomplete]

Kiniro Mosaic Urethral Play

(Ore no Turn 5) [Dekoboko. (Hekomi)] Develop You! (Yu-Gi-Oh! VRAINS)

Higurashi CG Shuu Seisakuchuu | Higurashi CG under development

Mesu Danshi Ecchi Manga Tsumeawase

[Developing Person(Hatten Tojounin)] Pink Slime [English] [head empty] [Digital]

(COMITIA97) [Muchakai (Mucha)] Chii-chan Kaihatsu Nikki | Development Diary Ch.1 – Chii-chan Development Diary 1 [English] {2d-market.com}

Illya Imouto Onahole Kaihatsu Choukyou | Illya Little Sister Onahole Development Training

Secret XX Development

Chizuru-chan Kaihatsu Nikki 4 | Development Diary Ch.8 – Chizuru-chan Development Diary 4 {2d-market.com}

[Developers (Nagasode)] Sepia-chan wa Choukyou Machine no Ejiki ni Narimashita. [Chinese] [不咕鸟汉化组] [Digital]

Chizuru-chan Kaihatsu Nikki 4 | Development Diary Ch.8 – Chizuru-chan Development Diary 4

Himitsu no xx Kaihatsu - Secret XX development | 秘密的××开发

Chizuru-chan Kaihatsu Nikki | Chizuru-chan's Development Diary

Chii-chan's Development Dairy 1

[bifidus] Hikari-san Kaihatsu Nisshi | Hikari-san's Development Diary (Kimi o Sasou Uzuki Ana) [English] [Digital]

Kaijin Kaihatsubu Tanpen Ero | Monster Development Department Short Erotic Manga

[Developers (Nagasode)] Eve-chan wa Shokushu Pants no Ejiki ni Narimashita. 2 [English] {Hennojin} [Digital]

Kiniro Mosaic Urethral Play

Boku no Mama-chan Kaihatsu Nikki 1 | The development diary of my Mama-chan 1

(C93) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki 5 | Chizuru-chan Development Diary 5 [English] {doujins.com}

Tomodachi to Kaihatsu Shite Miru Hon. | A book about trying to develop your sensitivity with your friend

[R-gen] Seishoku Kaihatsu Torawareta Elf no Choukyou Jikken | Sexual Development - Torture Training of Captured Elf (Mesu Hana ga Ochiru Toki) [English] [MTL] [Digital]

Seichou Nikki | Sexual Development Journal

[Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki Zenpen ~Kataomoichuu no Sensei no Tame, Chuunen Kyoushi ni Hamerareru Junjou Yuutousei~ | Chizuru-chan Development Diary Part One [English] {2d-market.com} [Decensored] [Digital]

[Developers (Nagasode)] Kaeshite! Boku no Clitoris 2 Inma no Iinari Dosukebe Choukyou [Chinese] [不咕鸟汉化组]

Huasanorori 1# Anniversary English

(C91) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki 4 | Development Diary Ch.8 – Chizuru-chan Development Diary 4 [English] {2d-market.com}

Chii-chan's Development Dairy 3

Development Diary Ch.2 – Chii-chan Development Diary 2

[Developers (Nagasode)] Eve-chan wa Shokushu Pants no Ejiki ni Narimashita. 2 | Eve-chan Fell Prey to the Tentacle Panties. 2 [English] [Digital]

(C86) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki | Chizuru-chan's Development Diary [English] =Lost Light+Funeral of Smiles+LWB

Development Diary Ch.3 – Chii-chan Development Diary 3

[Developing Person(Hatten Tojounin)] Pink Slime [English] [head empty] [Digital]

Minna no Meshitsukai Kaihatsuchuu desu | Everyone's Servant Is in Development

Chii-chan Kaihatsu Nikki Color Ban | Chii-chan Development Diary Full Color Collection

Hikari-san Kaihatsu Nisshi | Hikari-san's Development Diary

Android Development Diary

Imouto Saimin Kaihatsu "Karada ga Ugokanai!!" | Little Sister Hypno Development "I Can't Move My Body!!"

[Corundum] Tai Mesugaki-you Energy Drink o Kaihatsu Shita Loli Vinci-chan | Lolinchi-chan developed an anti-msgk energy drink (Fate/Grand Order) [English] [The Blavatsky Project]

JK Cumdump Development 2 | JK육변기 육성일지2

[Shimaji] Seicho Kiroku -Zenpen- | Souma's Sex Development Record - Part 1 (Koushoku Shounen Vol. 07) [English] [Decensored] [NewsMedia]

(C87) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki 2 | Chizuru-chan's Development Diary 2 [English] =Lost Light + Funeral of Smiles + LWB=

[Rohgun] Eroge o Tsukurou! Genteiban - Let's develop the adult game together | 一起來製作情色遊戲! 限定版 [Chinese]

[Developers (Nagasode)] Kaeshite! Boku no Clitoris 2 Inma no Iinari Dosukebe Choukyou

tsuyo Sō jū musume 1 ST LIEUTENANT HATANACA

Kareshi ja Ikenai Kyonyuu Meikko, Dai Kirai na Oji-san no Sei Kaihatsu Massage ni Ochiru | A Niece with Huge Tits who can't Cum with her Boyfriend Falls For her Hated Uncle's Sex Development Massage

[China] Fuko no Konsui Rape - Seicho Kiroku | Father Daughter Unconscious Rape: The Development Records (No! No! Rape) [English] [JuliusWinnfield] [Digital]

Ima kara Anata wa Onanie Ningyou desu

(C85) [Muchakai (Mucha)] Chii-chan Kaihatsu Nikki 4.1 | Chii-chan's Development Diary Epilogue [English] {doujin-moe.us}

(C84) [Muchakai (Mucha)] Chii-chan Kaihatsu Nikki 4 | Chii-chan's Development Diary 4 [English] {Doujin-moe.us}

[Marui Maru] Echiechi Seichou Kiroku 1-2 | Naughty Development Diary 1-2 [English] [Xzosk] [Digital]

(COMITIA98) [Muchakai (Mucha)] Chii-chan Kaihatsu Nikki 2 | Chii-chan's Development Diary 2 [English] {Doujin-moe.us}

SUPPLEMENT AND DEVELOPMENT

[Developing Person(Hatten Tojounin)] Pink Slime [English] [head empty] [Digital]

[Developers (Nagasode)] Ima kara Anata wa Onanie Ningyou desu [Chinese] [有条色狼汉化]

Development Diary Ch.2 – Chii-chan Development Diary 2 {2d-market.com}

[Aiirosakura (Aikawa Ryou)] Kuubo Wo-Kyuu-chan no Shimakaze Yuri Dorei Choukyou ~Anal Kaihatsu Hen~ | Standard Carrier Wo-Class Shimakaze's Yuri Slave Training ~Anal Development~ (Kantai Collection -KanColle-) [English] [B.E.C. Scans] [Digital]

Sixth: Focused Production Development

Mei ni Anal Kaihatsu Sareru JK | Anally Developed by My Niece

Development Diary Ch.4 – Chii-chan Development Diary 4 {2d-market.com}

[OKINA] Urethral Dilation Training Record (Haruko Iwasaka)

[Muchakai (Mucha)] Chii-chan Kaihatsu Nikki 3 | Development Diary Ch.3 – Chii-chan Development Diary 3 [English] {2d-market.com}

Seishoku Kaihatsu Torawareta Elf no Choukyou Jikken | Sexual Development - Torture Training of Captured Elf

[Mucha] Chizuru-chan Development Diary Full Color; Part One [English] {2d-market.com} [Decensored] [Digital]

[Golden Tube (Ogu)] Hokenshitsu no Oshikko Sensei - Mone to Tomo-chan no Koudou Nyoudou Shinsatsu no Hi | Oshikko Sensei, School Nurse - Mone and Tomo-chan's Mutual Urethral Checkup! [English] [Decensored] [Digital]

(C88) [Yakiniku Tabetai (Derauea)] Uzuki-chan no Suimin Kaihatsu ~Chiryou to Shoushita Honki no Kozukuri Sex~ | Uzuki-Chan's Sleep Development ~Real Baby-Making Sex Passed off as Treatment~ (THE IDOLM@STER CINDERELLA GIRLS) [English] [B.E.C. Scans]

The story of Shota, who was developed by Mesuiki when trying to sleep rape a tutor

Muchikko Succubus Choukyou Kaihatsu | An Innocent Succubus' Development Training

[Märchen BOX (Chouchin Ankou)] Kiniro Mosaic Urethral Play (THE Doujo) (Kiniro Mosaic) [English]

[sawacream] Mahoutsukai Lyrica 2 ~ Kyokugen made H ni Kaihatsu Sareta Oppai ~ | Magician Lyrica 2 ~ H-Developed Tits To The Extreme ~ [English]

A masturbation toy for girls developed by a dark pediatrician.

(CR21) [Bakuhatsu BRS. (B.Tarou)] Roll-chan no Kaihatsu Nikki | Roll's Development Diary (CAPSULE COMPUTER) (Rockman DASH) [English] [Writefuck]

Develop You!

Development Diary Ch.1 – Chii-chan Development Diary 1 {2d-market.com}