Activation Synthesis Theory

(C94) [Junpuumanpandou (Hida Tatsuo)] SECRET ACTIVITY (THE IDOLM@STER CINDERELLA GIRLS)

Kagai Jugyou | Extracurricular Activity

Mutsumi-san no Hanshoku Katsudou Kiroku | The Chronicle of Mutsumi's Breeding Activities Ch. 1-5

[SHINSHIN] Shinshin Nijigenron | Mind and Body Two Dimension Theory

Haha to Musuko no Undoubusoku Kaishouhou | Mother and Son's Way to Increase Their Physical Activity

Happy theory

[Kuroiwa Menou] Hitozuma Club Bijo to Yajuu-tachi (COMIC HOTMILK 2020-05) [English] {The Ancient Hentai Theory} [Digital]

[Haison] Ouma no Oyome-san Ninkatsuchuu - Horse's Bride Pregnancy Activities (COMIC Mugen Tensei 2024-08) [Digital]

(CR25) [Hoka Hoka Shoten (various)] ACTIVE HEART (various)

Active♥Passive

(C88) [ORANGE☆CHANNEL (Aru Ra Une)] Niko no Otona na Kouhou Katsudou!? | Nico’s Adult Activities (Love Live!) [English] [L-Lewd... Translations]

[Takeda Hiromitsu] Kaichou no Bukatsudou | The President's Club Activities (Tsundero) [English] [YQII]

[Kamiya Ogawa] Bakunyuu Elf to Isekai Seikatsu - Big Breasts ELF in Different World Sexual Activity [Digital]

Happy Family Activity [English] [Rewrite] [CrimsonCorset]

[Kururi Active] [Full Color Seijin Han] DISCIPLINE Dainishou Complete Ban [Digital]

Kyou no Jugyou wa, Chikyuujin no Hanshoku Katsudou no Kansatsu desu | Today's Lesson is Observation of the Breeding Activities of Earthlings

Intai Kidou Souko | Lewd-Body Activation Warehouse

Innocence1 - Theory

Empty Theory 4 - Well Definitely Meet Again

Girlscout secret activity

(C67) [A_N_C (Active Network Communication) (Midori Wakamoto)] A.N.C debut ☆ (School Rumble/Mai-HiME)

Milwarn no Nottorei Seikatsu 3 - MILLWARN NOTRAIDER SEX ACTIVITY

Ikinari Kozukuri Katsudou 2 | Sudden Babymaking Activities 2

(C78) [ACTIVELY DAWN (Fukai Miyabi)] MoBxMIO (K-ON!)

[Honey lounge (Hachimitsu)] Shukushou Seikatsu ~Osananajimi to no Sugoshikata~ | Shrinking Activity ~How To Spend Time With Childhood Friend~ [English] [zupernam]

SECRET ACTIVITY

Bible Black kanzenhan

Mutsumi-san no Hanshoku Katsudou Kiroku 6 | The Chronicle of Mutsumi's Breeding Activities Ch. 6

[Sumomo Dou (Sumomo EX)] Kousoku suru Bukatsudou | Bondage Club Activities (Boku wa Tomodachi ga Sukunai) [English] {J99814} [Digital]

(Futaket 8) [NOTE-ISM] Girls Cross Synthesis

[Tamagoro] Mutsumi-san no Hanshoku Katsudou Kiroku 6 | The Chronicle of Mutsumi's Breeding Activities Ch. 6 [English] {Faux}

[Kakuninii] Common Sense Modification Activity Record [English]

ACTIVE ACCESS

[Mamezou] Manga Club Activity Log (Anal wa Sex ni Hairimasu ka?) [English]

(CR36) [Active Sunrise (Muranako)] Oshiroibana -REFRAIN- Risshun

[Mandara Ryuuseigun (Signo Mandara)] Nicchoku wa Micro Bikini de ~Sukebe na Kakko de Seishori Katsudou~ | The Class Duty Is Done in Micro-Bikinis ~ Sexual Relief Activity in Depraved Outfits [English] [Solas]

Two Masturbating boys Active

Seishun Katsudou | Adolesensual Activities

[Mocchimochiya (caruta)] Bukatsu-go wa Seishori gakari ‐Kanojo no Hajimete wa Boku no Mono‐ | After Club Activities: Sexual Relief Duties -Her first time is mine- [English] [Kinsei Translations]

Houshi-bu no Seiteki na Katsudou no Seika. | The Sexual Activities Of The Volunteer Club

Active Passive

Forbidden club activities

A Kid’s Theory

(C90) [IIIIItune (Sippufx)] Enadri Activity! (Touhou Project)

(C81) [Active Sunrise (Muranako)] PARTY SHIFT XIV

[Yoshida] Sensei to Himitsu no Bu Katsudou | Sensei And The Secret Club Activity (COMIC Grape Vol. 4) [English] {amaimono} [Digital]

(C92) [Koniro Drops (Morishima Kon)] Rironjou 3-patsu made nara Taeraremasu. - In Theory You Can Tolerate up to Three Shots (Splatoon) [Chinese] [沒有漢化]

(C93) [Morittokoke (Morikoke)] Hyrule Hanei no Tame no Katsudou! | Activities for the Sake of Hyrule’s Future! (The Legend of Zelda) [English] {darknight}

[Shoryutei Enraku] Seishin Kaihouron | The theory of releasing your real self (Nozoite wa Ikenai 7 - Do Not Peep! 7) [English] [Quick and easy translations]

(SC2015 Autumn) [CHRONOLOG, D.N.A.Lab. (Sakurazawa Izumi, Miyasu Risa)] Super String Theory (Kantai Collection -KanColle-)

(C66) [SUBSONIC FACTOR (Ria Tajima)] The steady-state theory (Fullmetal Alchemist)

[Active Sunrise (Muranako)] Oshiroibana -REFRAIN- Aki

[Mattari House (Aitsu)] Hoshimiya Haruka no Junan (Active Raid -Kidou Kyoushuushitsu Daihachigakari-) [Chinese] [Digital]

Rice Shop Tachibana Koushiro's Invitational Activity {Leon990 Scanlations}

Club Activities boy x Cram School tutor

Rin Shibuya Activities

[Kururi Active] [Full Color Seijin Han] DISCIPLINE Daisanshou Complete Ban [Digital]

5 stories Ch3 - Club Activities

Empty Theory 8 - Apparent Flash

Toilet Activity - Hentai hanako in the toilet

(Knights Theory) [Snow Peach (Mipoko)] Naru no Anal kara Inspiration ga Waite Kuru zo (Ensemble Stars!)

Active Heroines

Himitsu no sei katsu - Secret Sexual Activity

Kivotos Kozukuri Katsudou Houkokusho | The Kivotos Baby-making Activity Report

Mutsumi-san no Hanshoku Katsudou Kiroku | The Chronicle of Mutsumi's Breeding School Club Activities Ch. 1-2

(C88) [American Kenpou (Kikuchi Seiji)] Active idle mine (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [暴碧汉化组]

Her Romantic Activities

(Yarou Fes 2015) [Neyukidou (Takaku Nozomu)] Komeya Tachibana Koushirou no Kanyuu Katsudou | Rice Shop Tachibana Koushirou's Invitational Activity [English] {Leon990 Scanlations}

(C79) [Akutibu Sanraizu (Muranako)] PARTY SHIFT XIII

(SC33) [Pied a terre (Ohkawa Aoi)] Active Heart (D.Gray-man)

[Takase Yuu] Setuna no Gotoku (Otokonoko Katsudou Houkokusho - Otokonoko Activity Report) [Chinese] [空想少年汉化]

Club Activities

(C47) [MICA (Various)] ACTIVE PEACH FINAL

Hyrule Hanei no Tame no Katsudou! | Activities for the Sake of Hyrule’s Future!

Active idle mine

Hakase no Renai Kaizouron | A Professors Theory on Love and Sex Reassignment Surgery

(C95) [Hizatora (Kageshio)] ACTING LIKE (Fate/Grand Order) [English] {The Ancient Hentai Theory}

Active Canine + Bikini de Ojama | Active Canine + Bikinied Nuisance

Empty Theory 2 - Sky High

Lili no Dungeon Seikatsu Support Katsudou | Lili's Dungeon Support Activities

DISCIPLINE Daiichiwa Complete Ban

Shin Bible Black kanzenhan

(C71) [Active Sunrise (Muranako)] Oshiroibana -REFRAIN- Natsu

[Mukaibi Aoi] Fashion-bu no Himitsu no Katsudou | The Fashion Club’s Secret Activity (Cure Bitch HC Heartcatch) [English] [knightsever]

DISCIPLINE Daiyonshou Complete Ban

[Theory of HEAVEN (CROW)] Ikuiku! Ikuma-kun! (Black Jack) [2017-08-20]

Aibuka! Club Activities as an Idol! Ch. 5

[Ootani Mikoto] Seishun Kanjouron - youth emotion theory [R18 Ban] 1

Happy Family Activity (Stripped and Edited) [English] [Rewrite]

[Makikusu (Makinaru)] active round (Street Fighter)

(C88) [American Kenpou (Kikuchi Seiji)] Active idle mine (THE IDOLM@STER CINDERELLA GIRLS)

[Anthology] Ao Yuri -Story Of Club Activities-

[Kururi Active] [Full Color Seijin Han] DISCIPLINE Daiichiwa Complete Ban [Digital]

Kamiyama Koukou Omanko Kenkyuukai Katsudou Kiroku | Kamiyama Highschools Vagina Research Society Activity Record

Hoshimiya Haruka no Junan

(C88) [slice slime (108 Gou)] Damasareta Geneki Idol | Active idle deceived (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [无毒汉化组]

[Ameyama Telegraph (Ameyama Denshin)] Junko's Extracurricular Excretion Activities [SCAT][English]

K's Theory

(CSP5) [Actively Dawn (Fukai Miyabi)] Umineko ga naku mae ni ore ga naita (Umineko no naku koro ni)

[Tamagoro] Mutsumi-san no Hanshoku Katsudou Kiroku Bangaihen | The Chronicle of Mutsumi's Breeding Activities side story (COMIC Penguin Club Sanzokuban 2016-10) [Chinese] [最愛路易絲澪漢化組]

Satoko to Bukatsu no Nichijou | Satoko’s Daily Club Activities

Kappatsu Shounen Kanshasai - Active Boy's Thanksgiving Festival

(C76) [Active Sunrise (Muranako)] PARTY SHIFT X

(COMIC1☆6) [Crazy9 (Ichitaka)] Zessica no Koufukuron | Zessica's Theory of Happiness (Aquarion Evol) [English] [biribiri + Doujin-Moe.us]

Otomari Dokidoki Activity

[Mattari House (Aitsu)] Hoshimiya Haruka no Junan (Active Raid -Kidou Kyoushuushitsu Daihachigakari-) [Digital]

[Higedokoro (Alapi)] Schale Houshibu Katsudou Kiroku 2 -Hasumi, Yuuka, Ako Hen- | This Week's Record of Activities for the Schale Relief Club 2 ~The Hasumi, Yuuka and Ako Chapter~ (Blue Archive) [English] [head empty] [Digital]

(C97) [Kaiten Sommelier (13.)] 39 Kaiten Shouko-san no Onaho Nikki. Tadaima, Onaho Katsudouchuu. | Shouko-san's Onahole Diary. Today's Onahole Activities. [English] [Double Ecchi]

[Takase Yuu] Otokonoko Katsudou Houkokusho - Otokonoko Activity Report

Pururun Seminar CH41 - Lets Be Active

[Morittokoke (Morikoke)] Hyrule Hanei no Tame no Katsudou! | Activities for the Sake of Hyrule’s Future! (The Legend of Zelda) [English] {darknight} [Digital]

(COMIC1☆5) [Active Mover] Moeru Kurokami Long Musume Hon

Soutaisei Virgin Theory

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

Sumireko CAc -Club Activities-

[Kururi Active] [Full Color Seijin Han] DISCIPLINE Daigoshou Complete Ban [Digital]

ACTIVE LOVERS

[Sakurai Minami, Umemaru] Himitsu no Shakespeare | Secret Shakespeare (Ao Yuri ~Story Of Club Activities~) [English] [yuriproject]

(C92) [Koniro Drops (Morishima Kon)] Rironjou 3-patsu made nara Taeraremasu. - In Theory You Can Tolerate up to Three Shots (Splatoon)

Bukkake Houshi Katsudou | Bukkake service activities

[Grove Grow (Komori Kuduyu)] Cosplay-bu Ura Katsudou Nisshi - Cosplay CLUB Secret Activity diary [Digital]

[Tamagoro] Mutsumi-san no Hanshoku Katsudou Kiroku | The Chronicle of Mutsumi's Breeding Activities Ch. 1-3 [English]

[Maximize Darkness] Girlscout secret activity [English] [Kuroitofu]

Project Nemesis activated

(C77) [Actively Dawn (Fukai Miyabi)] Milk Tea Party (Umineko no Naku koro ni)

[Active] Mahjong Fantasic Art Collection

The Alcohol Induced Activities of a Certain Famous University's Club Revealed =LWB=

DISCIPLINE Rei Kanzenban

Schale Houshibu Katsudou Kiroku | This Week's Record of Activities for the Schale Relief Club

Kodomo no Riron | A Kid’s Theory

Empty Theory 5 - Advantage

Himitsu no sei katsu - Secret Sexual Activity