Research Operationalization

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

[Department Y Research Institute] Bōkoku Ōji no matsuro

[Shinsekai Set (Hetaren)] Kurodate o Shiro ni Someru Seishoku Kenkyuu o (Blue Archive) | Sexual Gourmet Research: Dyeing Kurodate White [English] [Douzo Lad Translations]

[Department Y Research Institute] Bōkoku ōjo no matsuro

Movie Research Lovers

(Neriwasabi) お嬢様 vs モリガン vs 猫口 vs 見習魔法使いの巻き

Dance! Tentacle Research Institute

[Touno Itsuki] Off Limit [English] [desudesu]

Ho Kuronikuru 09

Binyuchousain Ayako | Busty Researcher Ayako

[Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho 005 "Dengeki Jigoku" - Turupeta Research Report

Etsu no Yodomi Dainishou Mononobe no Futo, Ecchi na Shugyou Ganbaru!

Research Fellow

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

[EKZ] Devil's Playground [English]

Yuri-ken Beit Boshuuchuu Soushuuhen | Yuri's Lab Wants Research Assistants

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

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

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

KUROBACO BITS

[Un-Go] Doctor Kazamori's Slightly Naughty Research 2 [English]

[Hanpera] Mazekoze Fuufu (Web Haishin Gekkan Tonari no Kininaru Oku-san Vol. 030) [Chinese] [Digital]

[Onna ni Yoru Onna e no Ryoujoku] OL Hitomi Jigoku no Fukushuu Shuuchi Zeme ~Onna Joushi wa Buka no Kanchou Dorei~ Kouhen

Two Girl's Suck-Suck Research Note

(C78) [Yo wa Okazu wo Shomou Shiteoru (Shian)] Onna Kenkyuuin no Ijou na Aijou | A Female Researcher's Abnormal Desire [English] =LWB=

(COMIC1☆11) [Showa Saishuu Sensen (Hanauna)] Kamiyama Koukou Omanko Kenkyuukai Katsudou Kiroku | Kamiyama Highschools Vagina Research Society Activity Record (Hyouka) [English] [Doujins.com]

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

Kusuguri Goumon Teikoku 2

(C77) [DG Project (Tokonaru)] Kyoukan no Cherii (Queen's Blade)

Musume ga Furyou ni Otosarete Ita

不知火舞被自己的菊花勒死的可笑末路

Bowsette's Research