A masturbation toy for girls developed by a dark pediatrician.
Miracle8
[Uziga Waita] Zetsubou Kikan [Chinese]
SUPPLEMENT AND DEVELOPMENT
(C39) [PUSSY CAT (Oono Tetsuya)] PUSSY CAT Special Soreike Nadia (Fushigi no Umi no Nadia, Gundam)
[doushoku (Hino)] Wagamama Imouto Onaho-ka Keikaku ~Neru Imouto o Kaihatsu Choukyou~ | Bratty Sister Onahole Plan ~Developing and Breaking the Sleeping Sister~ [English] [Digital]
Mei ni Anal Kaihatsu Sareru JK | Anally Developed by My Niece
[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]
JK육변기 육성일지 | JK-CumDump Development Diary
(C93) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki 5 | Chizuru-chan Development Diary 5 [English] {doujins.com}
(COMITIA98) [Muchakai (Mucha)] Chii-chan Kaihatsu Nikki 2 | Development Diary Ch.2 – Chii-chan Development Diary 2 [English] {2d-market.com}
Development Diary Ch.1 – Chii-chan Development Diary 1
Inkou no Vorugasm
(C87) [Tokyo Continent (Kurasawa Kyosyo)] 5180
(C91) [Roubai-tei (atahuta)] Tanoshii Seieki Bokujou -Kaihatsu Hen-|Happy Semen Farm -Development Branch- (Brave Witches) [English]
Alice Margatroid Beit Yamemasu!
Classmate Nyuugaku Shashin 2 Rijichou Sensei to Issho ni Satsuei Kai
(C91) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki 4 | Development Diary Ch.8 – Chizuru-chan Development Diary 4 [English] {2d-market.com}
The story of Shota, who was developed by Mesuiki when trying to sleep rape a tutor
IkuMomo ToT
[China] Fuko no Konsui Rape - Seicho Kiroku | Father Daughter Unconscious Rape: The Development Records (No! No! Rape) [English] [JuliusWinnfield] [Digital]
(C53) [Studio Mukon (Zyaroh Akira)] SUPPLEMENT AND DEVELOPMENT (Battle Athletes Victory, ToHeart, Darkstalkers)
Geki-roku! Yarashii Toshi Densetsu Gomu-nashi Raidaa
Development Diary Ch.2 – Chii-chan Development Diary 2 {2d-market.com}
[R-gen] Seishoku Kaihatsu Torawareta Elf no Choukyou Jikken | Sexual Development - Torture Training of Captured Elf (Mesu Hana ga Ochiru Toki) [English] [MTL] [Digital]
[Rohgun] Eroge o Tsukurou! Genteiban - Let's develop the adult game together
Boku no Mama-chan Kaihatsu Nikki 1 | The development diary of my Mama-chan 1
(SC2015 Summer) [Funi Funi Lab (Various)] PINKY BLUE (Battle Spirits BurningSoul) [English] [Doujins.com]
Seishoku Kaihatsu - Torawareta Erufu no Chōkyō Jikken | Sexual Development - Torture Training of Captured Elf
Chii-chan's Development Dairy 3
Hikari-san Kaihatsu Nisshi | Hikari-san's Development Diary
(Aoi Yama no Tenshi-sama 2) [Hellenism (Y)] Dainarishounari (Yowamushi Pedal)
Chii-chan Kaihatsu Nikki Color Ban | Chii-chan Development Diary Full Color Collection
(Zenkai Cadence 12) [Katakoto (Takako)] room (Yowamushi Pedal)
(COMITIA97) [Muchakai (Mucha)] Chii-chan Kaihatsu Nikki | Chii-chan's Development Diary [English] {Doujin-moe.us}
Konna Oji-Chang ni Kanjisaserarete....
Tsumugi to Koi no Tsumugi Kata
Sumire wa, □□□ no Tame nara.
Chii-chan's Development Dairy 1
[Tamagoro] Haou, Otsu! (COMIC Penguin Club Sanzokuban 2012-10) [English] [yuripe] [Digital]
(C91) [Roubai-tei (atahuta)] Tanoshii Seieki Bokujou -Kaihatsu Hen-|Happy Semen Farm -Development Branch- (Brave Witches) [English] [Mongolfier]
(C86) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki | Chizuru-chan's Development Diary [English] =Lost Light+Funeral of Smiles+LWB
Hoshi no Ne Sanctuary artbook
Men's Gold 2018-05 [Digital]
(C86) [Pomatobatake (Kin29 Nitaro)] FORTITUDE (The Mighty Thor)
(C87) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki 2 | Chizuru-chan's Development Diary 2 [English] [Doujin-Moe]
[sawacream] Mahoutsukai Lyrica 2 ~ Kyokugen made H ni Kaihatsu Sareta Oppai ~ | Magician Lyrica 2 ~ H-Developed Tits To The Extreme ~ [English]
Shinseki no Onnanoko ga Kyuuseichou Shite Bakunyuu ni Narimashita | A relative of yours develops suddenly and gets MASSIVE TITS
COMIC KOH Vol. 5
(CR21) [Bakuhatsu BRS. (B.Tarou)] Roll-chan no Kaihatsu Nikki | Roll's Development Diary (CAPSULE COMPUTER) (Rockman DASH) [English] [Writefuck]
[Developers (Nagasode)] Eve-chan wa Shokushu Pants no Ejiki ni Narimashita. | Eve-chan Fell Prey to the Tentacle Panties. [English] {Hennojin} [Digital]
[Meisho Hanten (Haruaki)] Papa-kai one count [Chinese] [Digital]
Chizuru-chan's Development Diary
[Anthology] Heroine Pinch Vol.2 [Digital]
MakiRinPana Dousei Lesson Summer Festa
[Developers (Nagasode)] Eve-chan wa Shokushu Pants no Ejiki ni Narimashita. 2 | Eve-chan Fell Prey to the Tentacle Panties. 2 [English] [Digital]
Tomodachi Ijou - Koibito Miman
Illya Imouto Onahole Kaihatsu Choukyou | Illya Little Sister Onahole Development Training
(C85) [Muchakai (Mucha)] Chii-chan Kaihatsu Nikki 4.1 | Chii-chan's Development Diary Epilogue [English] {doujin-moe.us}
(C91) [Kamishiki (Kamizuki Shiki)] Sweet Milk o Meshiagare
Seishoku Kaihatsu Torawareta Elf no Choukyou Jikken | Sexual Development - Torture Training of Captured Elf
Sixth: Focused Production Development
(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]
Hangyaku no Ma Yuusha | The Traitorous Demon Hero
(C84) [Muchakai (Mucha)] Chii-chan Kaihatsu Nikki 4 | Development Diary Ch.4 – Chii-chan Development Diary 4 [English] {2d-market.com}
Chii-chan's Development Dairy 2
(C86) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki | Development Diary Ch.5 – Chizuru-chan Development Diary 1 [English] {2d-market.com}
(C54) [GA FAKE (Tajima Yasue)] Circle Monument II
(C90) [Dr.VERMILION (Petenshi)] Voice Eroid + VR Yuzuki Yukari (VOCALOID)
[Zenoside (Zeno)] Cosplay Josou Yagai Roshutsu Jigadori Hatate-kun & Aya-kun (Touhou Project)
[Nekohakushaku] Boku no Mama-chan (43) Kaihatsu Nikki 1 | The development diary of my Mama-chan 1 [English] [Pandora's actor]
Chii-chan's Development Diary Epilogue
3D no X to Y de Happiness?!