Happy theory

(SC47) [Ajisaidenden (Kawakami Rokkaku, Takanashi Rei)] CANON -LEARN AND SING- (Darker than Black: The Black Contractor) [English] [Vagina Justice]

[Himino] Mukuchi na Kanojo no Seikantai ~Koe wa Dasanai kedo Karada wa Shoujiki da ne, Zubunure da yo 1-3 | The Quiet Girl’s Erogenous Zone - She Doesn’t Moan, but Her Body is Honest, She is Wet 1-3 [English]

Saenai Futari no Itashikata 2 | How the Boring Couples Does It 2

[Urushi me] dai kkiraina aitsu wa doesu de ana onzōshi hatsujō dekiai sekkusumarijji | 最讨厌的那家伙是抖S α大少爷 3 [Chinese]

[Seki Sabato (Tsukuru)] Kyou mo Kateikyoushi ga Kite Kyousei Mesuochi Saiminnjugyou o Suruhi [Digital] [Chinese] [theoldestcat汉化]

[Izayoi no Kiki] Share 2 Kaa-san tte Muriyari Saretari Suru no Suki na no? | Share 2 Does Mom Like to be Fucked Against Her Will? [English] [Raknnkarscans]

[Kurebayashi Asami] Sayonara, Papa | Goodbye, Pops. (COMIC LO 2022-05) [English] [Learn JP with H] [Digital]

Theobromin

[Misty Wind (Kirishima Fuuki)] Noel Doesn't hate Arakune Anymore! [English]

Gyaru na Imouto wa Saimin Nanka Shinjinai! | My Little Gyaru Sister Doesn't Believe in Hypnosis!

Kodomo no Riron | A Kid’s Theory

(Shota Petit) [S-Size (Shinachiku)] Itsuki-kun ga Osewa ni Narimasu [Chinese] [theoldestcat汉化]

[Enokido] Kenkou Yuuryou Boyish Shoujo Papakatsu o suru. | Healthy Boyish Girl Does Compensated Dating. [English] [Coffedrug]

[Spark Utamaro] Koneko wa Nakanai | A kitten that doesn't cry (Junshiri) [English]

Goukon de o mochikaeri shitara doesu no otokodatta hanashi

[Ahemaru] Mono Ni Suru Tame Ganbaru Mitaka-san (Sensou-san) | Mitaka-san Does Her Best to Make you Hers (Chainsaw Man) [English]

Lesson Learned [English] [Rewrite] [olddog51] [Decensored]

[Shiwasu no Okina] Please! Freeze! Please! Sono Saki E (COMIC AUN 2020-12) [English] [Learn JP with H]

Kinshinkan De Seikatsuhi wo Eru Hizunda Kyodai | The Twisted Big Sister Who does Incest With Her Little Brother to Get By

How does hunger feel?

The Sun Doesn't Rise | Noboranai Taiyou

Scapegoat Koufukuron | Scapegoat Theory of Happiness

(Hyattou Ryouran ~Kimi no Heart o Shirahadori~) [Kirisima (Theo)] World's End Dancehall (Touken Ranbu)

[Corundum] Otoshimae Tsukesasetatta (Fate/Grand Order) [Chinese] [theoldestcat汉化]

(C88) [Shinnihon Pepsitou (St.germain-sal)] Onnanoko wa Ryou Ana tomo Kimochiiite Hontou desuka? | Does she really like it in both holes? (Oshiete! Galko-chan) [English] =7BA=

Anata ga Itte mo Owaranai - When you ejaculate, it doesn't end

A Professors Theory on Love and Sex Reassignment Surgery

Marina gomu iranai yo! | Marina doesn't need protection!

(C65) [TENGU NO TSUZURA (Kuro Tengu)] Angel Does Me (Neon Genesis Evangelion)

Jaguar wa Tabun Tatakawanai | Jaguar Doesn't Fight

Empty Theory 6 - Hearts Scheme

[Chiguchi Miri] Loli wa Taiyou | Loli Is My Sun (Ikenai Koto kamo...) [English] [Learn JP with H]

(C95) [kirscherise (Yoshiizumi Hana)] Kirafuri Swimsuit (Fate/Extella Link) [Chinese] [theoldestcat汉化]

[Kunaboto]Sonia does not return from the forest(Pokémon Sword and Shield)[chinese]

Empty Theory 4 - Well Definitely Meet Again

[Ayato Ayari] Kimi o Metoruhi (Otokonoko HEAVEN Vol. 40) [Chinese] [theoldestcat汉化]

Koneko wa Nakanai | A kitten that doesn't cry

[Hone, Masshigura (Akiduki Touya)] Torikago ~Ochiru Gokousen, Mikaishuu no Imouto~ | Bird Cage -Falling on a Five Ship Battle and The Little Sister That Doesn't Improve- (Kantai Collection -KanColle-) [English] {Doujins.com} [Digital]

[Nimu] Haitoku tte Kimochi Yokunai!? | Doesn't Corruption Feel Good? (COMIC Megastore Alpha 2017-01) [English] {Doujins.com} [Digital]

Elder-Sister x Younger-Brother

[Seki Sabato (Tsukuru)] Manbiki Josou Shounen Oshioki Fuck [Chinese] [theoldestcat汉化] [Digital]

(Reitaisai 6) [Kikagaku Moyou / Aestheometry (Pilky)] Himitsu no Ehon (Touhou Project)

Ninshin Kore Ku Shon 5 ~ 5-ri no sensuikan musume to doesu teitoku ~

(Girls Love Festival 21) [peachpulsar (Mira)] Jaguar wa Tabun Tatakawanai | Jaguar (Probably) Doesn't Fight (Kemono Friends) [English]

[Yuiga Naoha] Seinaru Manabiya no Sono de | Inside the Holy Garden of Learning Ch. 0-3 [English] {doujin-moe.us}

(C94) [S-Size (Shinachiku)] Koisuru Summer Vacation [Chinese] [theoldestcat汉化]

Enchant（theoldestcat汉化）

[Shimaji] Mushaburi Learning | Let's Study Penis (COMIC Shitsurakuten 2013-05) [English] [CGrascal]

[Uehara Yoyogi] Sodachi-Mori no Shojo Imōto o Doesu ni Chōkyō 〜 O, O Niichan! Korette Sekkusu?〜Chp.1-2

Daikiraina Aitsu wa Doesu de αna Onzoushi Hatsujou Dekiai Sex Marriage | 最讨厌的那家伙是抖S α大少爷 溺爱发情sex marriage 3

(COMITIA121) [Usamimi Syndrome (Erutasuku)] Oretachi no Seijo-sama ga Otokonoko na Wake nai daro! [Chinese] [theoldestcat汉化]

Leona ★ Heroes - League of Legends Fan Book

[FruitsJam (Mikagami Sou)] Ura Mahou Sensei Jamma! 17 (Mahou Sensei Negima!)

(Houraigekisen! Yo-i! 9Senme!) [BQ (Kitao Taki)] Kumano ga Suzuya ni Shite Mitai Hon | A Book Where Kumano Does What She Wants to Suzuya (Kantai Collection -KanColle-) [English] [Yuri-ism]

[Nozarashi] Perhaps I'm a Bit Biased, But Doesn't It Follow Perfectly [ENG]

Jitsuwa Doe M no Okaa-san o Tomodachi ni Kashidashitara?

Judo o Narau | Learn Judo

[Hase Tsubura] Rankou Hisho - The Secretary Who Does Group Sex

[Misty Wind (Kirishima Fuuki)] Noel Doesn't hate Arakune Anymore! 2 [English]

(C92) [Inariya (Inari)] Kyoudai ni Okeru Seikoushou no Kiroku [Chinese] [theoldestcat汉化]

Angel Girl

[Kagura Hitsuji] Amarimono 2 -Shojo o Ushinatta Yokujitsu ni Zecchou o Shitta Akogare no Kanojo- | Leftover 2 -The Girl of My Dreams Learned How to Orgasm The Day After She Lost Her Virginity- [English] [Black Grimoires]

Learn Together

Futanari Nan Gallon Daseru? - How Dany Gallons Does Her Semen Comes Out?

[MARIO ALMANAC (Mario)] METAL SLUG (Kantai Collection -KanColle-) [Chinese] [theoldestcat汉化] [Digital] [Incomplete]

(COMITIA124) [Seki Sabato (Tsukuru)] Shikkaku Boyfriend [Chinese] [theoldestcat汉化]

i sekai de yandere dan'na ni doesu chōkyō sa rete imasu | 在异世界被病娇老公进行抖S调教

(C78) [Kinokonomi (kino, konomi)] Kinokothical Theory (Various)

[DATE] Nijigen Strike | 2D Strike (COMIC P Flirt Vol.11 2011-06) [English] [Learn JP With H]

(C94) [Seki Sabato (Tsukuru)] Hanabi no Yoru no Himitsu [Chinese] [theoldestcat汉化]

Theo to Theo Chuuhen | Theo and Theo: Middle Chapter

[A-10] Load of Trash Kanzenban Ch. 1-11 [Chinese] [沒有漢化]

(Shota Scratch 31) [S-Size (Shinachiku)] Kimi ga Suki [Chinese] [theoldestcat汉化]

Empty Theory 8 - Apparent Flash

[Mogetama (Tanakamori Yokota)] Tabunkitto, Ashita no Nazunawa [Chinese] [theoldestcat汉化] [Digital]

(ShotaFes 2) [J-M-BOX (Takatsu Keita)] Paper Jetter Tsubasa [Chinese] [theoldestcat汉化]

Ochinchin-san Otasuke suru? | Does Your Dick Require a Helping Hand?

TS Sister, Kodomo no Tame ni Ganbarimasu ♀!! | TS Sister Does Her Best For The sake of A Child ♀!!!

(C95) [Inran Shounen (Jairou)] Yami no Serva Fes - Kindan no Rakuen ni Youkoso! (Fate/Grand Order) [Chinese] [theoldestcat汉化]

Does it Feel Good? x Good Feeling - Ch. 5

(C93) [littlehopper+Ziggurat (Hashibiro Kou)] Sae-chan no Hatsutaiken 2 ~Katte ni Monzetsu Suiminkan~ | Sae-chan's First Time 2 ~ As You Please Abusive Sleep Rape~ [Learn JP With H] [English]

[MonsieuR (MUK)] Tiny Evil - Tennen Doesu Mesugaki Inma-chan-tachi no Mugen Sakusei Jigoku [Textless] [Digital]

(C91) [candy paddle (nemunemu)] OTOKONOKO Matome Hon 2013-2015+α [Chinese] [theoldestcat汉化]

[Ichibariki (Ichimura)] Otoko no Ko no Oshigoto! [Chinese] [theoldestcat汉化] [Digital]

(ShotaFes 2) [SERVICE BOY (Hontoku)] Onii-chan ni Tanezuke Shichao! [Chinese] [theoldestcat汉化]

Saori Takebe Thought She Was Going to Lose Her Virginity by Working at a Brothel but it Turned Out to be a Delivery Health Establishment That Does Not Allow Sex

[Mine Mura] Kyoudai Guruwa (Otokonoko HEAVEN Vol. 22) [Chinese] [theoldestcat汉化] [Digital]

Mahou Shoujo wa Inma Kaizou no Yume o Miru ka? | Does the Magical Girl Dream About Being Turned Into a Succubus?

Mitaka-san Does Her Best to Make you Hers

Pixiv Artist - 汁 --- Learn English

[CHIN-UP (Pocchi)] Karasu Tengu No Kamikakushi [Chinese] [theoldestcat汉化] [Digital]

Daikkiraina Aitsu wa Doesu de α-na Onzoushi Hatsujou Dekiai Sex Marriage | 最讨厌的那家伙是抖S α大少爷 3

Yuyuko-sama wa Yaritai Houdai! | Yuyuko Does as She Please!

[Poron] Hotarumaru Yarichin Hon Bangaihen (Touken Ranbu) [Chinese] [theoldestcat汉化]

[Chiguchi Miri] Contemporary Inaka Cruise | Contemporary Countryside Cruise (Ikenai Koto kamo...) [English] [Learn JP with H]

[Corundum] Otoshimae Tsukesasetatta (Fate/Grand Order) [Chinese] [theoldestcat汉化]

Learning Curve [English] [Rewrite] [Reijikun]

Onnanoko wa Ryou Ana tomo Kimochiiite Hontou desuka? | Does she really like it in both holes? =7BA=

Empty Theory 1 - After Pleasure

Theodore × Hamuko

(SC47) [ajisaidenden (Kawakami Rokkaku)] CANON-LEARN AND SING- (Darker Than Black)

Onedari Nandemo Hitotsu Dake! Tsuki ni Negai o

[Senpenbankashiki (DATE)] Tanin ni Naru Kusuri | Medicine to Become Another Person [English] [Digital] [Learn JP with H]

[Ayato Ayari] Kotora to Ookami | 小老虎和狼 (Koushoku Shounen Vol. 07) [Chinese] [theoldestcat翻译] [Digital]

Because Everyone Does It

[Natsume Benkei] Nichijou-teki ni Okaa-san ni Dasu Seikatsu - Otou-san ni Naisho no Nakadashi Ecchi Hen | Cumming In Mom Daily Dad Doesn't Know We're Having Creampie Sex [English]

[U-hi] Next is…? (Koushoku Shounen Vol.10) [Chinese] [theoldestcat汉化]

K's Theory

Saimin-Ritsu 100%! ~Doesuna Bijo-tachi to Namahame SEX~ Full Color Comic Ban

[Kome Nouka (Komezawa)] 168cm Iroha-kun wa Jinken ga Nai! | 168cm BOY is no longer Human! (When will they learn?) [English] {☼Red Sun Productions☼} [Digital]

[withsoda (Kitaichi Naco)] Kekkon Kinenbi no Sugoshikata [Chinese] [theoldestcat汉化] [Digital]

[Sakura Puchilo] ☆Kyouiku Terebi (Koushoku Shounen Vol.12) [Chinese] [theoldestcat汉化] [Digital]

[mdo-h] DEVIL'S BORN (Soutaisei Virgin Theory) [Chinese]

(C94) [Seki Sabato (Tsukuru)] Kyou wa Kateikyoushi ga Kite Kyousei Mesuochi Saiminnjugyou o Suruhi [Chinese] [theoldestcat汉化]

(C95) [Seikatsu Seshishou (tt)] Nukumori no Hi [Chinese] [theoldestcat汉化]

[Pecan (Makunouchi)] Kyosei Nyuumon Taiken Gakushuu Hen | Introduction to Castration - Hands-on Learning [English]] [Hennojin] [Decensored]

[Mogiki Hayami] Chizuru-kun no Kimagure (Koushoku Shounen Vol. 12) [Chinese] [theoldestcat汉化] [Digital]

[Tsukuru] Neko o Kau (Otokonoko Heaven's Door 4) [Chinese] [theoldestcat汉化] [Digital]

[SERVICE BOY (Hontoku)] Chijoku Takaki Bicchi Inu [Chinese] [theoldestcat汉化]

[Hey You! (Non)] Len-kun to Asobou! (VOCALOID) [Chinese] [theoldestcat汉化]

Does it Feel Good? x Good Feeling - Extra

[Morittokoke (Morikoke)] Eiketsu Ninja Gaiden ~Haiboku Hen~ (The Legend Of Zelda) [Chinese] [theoldestcat汉化] [Digital]

[Chiguchi Miri] Ikenai Koto kamo... Ch. 1-4,7 [English] [Learn JP With H]

Namaiki Bakkari Iu kedo Sugu Wakaraserarechau Kouhai-chan no Ohanashi | A Bratty Underclassman Who Quickly Learned Her Lesson

My Real Older Sister Does Amateur Porn.

[Tsukuru] Kagi no Nai Ori (Otokonoko Heaven's Door 8) [Chinese] [theoldestcat汉化] [Digital]

(Shadow Trickster 3) [BIPS-M (Mayu Mayuko)] Things I Learned About You. (Kuroko no Basuke) [English]

[Himino] Mukuchi na Kanojo no Seikantai ~Koe wa Dasanai kedo Karada wa Shoujiki da ne, Zubunure da yo 1-6 | The Quiet Girl’s Erogenous Zone - She Doesn’t Moan, but Her Body is Honest, She is Wet 1-6 [English]

[Tsukuru] Nagasare Supported (Otokonoko HEAVEN Vol. 27) [Chinese] [theoldestcat汉化] [Digital]

[gento] "Sex no Benkyou Shiyokka?" Kareshi ga Iru no ni Itoko kara Shojo wo Ubaware Zecchou Shidou 1-3 | Let's Learn About Sex: Your Cousin Will Take Your Virginity and Teach You How to Come 1-3 [English]

Daikiraina Aitsu wa Doesu de αna Onzoushi Hatsujou Dekiai Sex Marriage | 最讨厌的那家伙是抖S α大少爷 溺爱发情sex marriage 3-6

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

(Mimiket 32) [fluffily*cute (Yuru)] Minnie Doe Alma to no Kizuna (Emil Chronicle Online)

Share 2 Kaa-san tte Muriyari Saretari Suru no Suki na no? | Share 2: Does Mom Like Using Force?

Empty Theory 5 - Advantage

Mesu Onna Doesu Bitchi