(CSP6) [Nagiyamasugi (Nagiyama)] Shibuya Rin Kyousei Lesson (THE IDOLM@STER CINDERELLA GIRLS)
Mizugi no Shita no Yuuwaku | Temptation Beneath The Swimsuit
Man-to-man Lesson
(COMIC1☆2) [Hakkekkyuu Sekkekkyuu (Zekkyou)] Haru na noni sukumizu de iin desu ka? | Even through it's spring, are swimsuits ok? (The Melancholy of Haruhi Suzumiya) [English] [RaikenTB, 4dawgz]
(Dai 8-ji ROOT4to5) [+810 (Yamada Non)] Chuunen Doutei Jishou Master to Jutsu Aniki no Supplementary Lesson (Fate/Grand Order)
(C68) [Lover's (Inanaki Shiki)] Secret Lesson (School Rumble)
(COMIC1☆10) [mon-petit (Mon-petit)] Mai Senpai no Anal Lesson (Musaigen no Phantom World)
Swimmer in the Dark sample
Boing Boing Teacher P11 - Extracurricular Lessons
[MG Joe] Lesson-S
(C88) [Attendance Number 26 (Niro)] Cinderella to Ecchi na Lesson (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [佳奈助汉化组]
[Himuro Serika] Nyotaika Suieibu ~Ikutabi Onna ni Nacchau Ore no Karada | Nyotaika Swim Club ~I Turn into a Girl When I Cum!~Partial 3-4 [English] [wandererkitty]
Hip Swimming 02
(C95) [kirscherise (Yoshiizumi Hana)] Kirafuri Swimsuit (Fate/Extella Link) [English]
[sugarBt] Hajimete no Jugyou | First lesson (COMIC Koh 2016-09) [Chinese]
[Matori Shotennin] Sex Lessons In The Demon World (Chapter 1-4)
[princess spirit. (Kisin Juki)] H na dare ni mo Ienai Lesson File (THE iDOLM@STER)
Summer! Tentacles! School Swimsuit! | Natsu da! Shokushu da! Sukumizu da!
(C86) [Ninokoya (Ninoko)] MAKI LESSON (Love Live!) [Chinese] [脸肿汉化组]
(C89) [Millionlove (Yayo)] Perfect Lesson 5 -Idol Haisetsu Stage- (The Idolm@ster Cinderella Girls) [English]
[Maeshima Ryou] Kirakira Otona Lesson
[FANTASY WIND] Lovable Lesson (With You)
(Shotaket 13R) [Reflection (U-hi)] Individual Class Supplementary Lessons [English] {WarDance}
Kirakira Otona Lesson
(SC46) [r.i.s factory (Ruschuto)] LESSON GOES ON (K-ON!) [Chinese] [最愛路易絲澪漢化組]
(C89) [Navel Colors (Sakurazuki Minamo)] SECRET LESSON ~Shibuya Rin no Baai~ (THE IDOLM@STER CINDERELLA GIRLS)
(C92) [Millionlove (Yayo)] Perfect Lesson 7 - New Generations Haisetsu Stage (THE IDOLM@STER CINDERELLA GIRLS)
[Watanabe Wataru] An exciting lesson [English]
(Puniket 36) [Vagina Dentata (Hirota Masatane)] Michiru no Otona Lesson (PriPara)
Natsu no Lesson | Летний урок
Lesson x Lesson
(C94) [Happatei (Hani Harou)] TotoUzu Gohoushi Lesson (THE IDOLM@STER CINDERELLA GIRLS)
(C86) [Chinchintei (chin)] Iku-san to Kyousei Sex Lesson (Touhou Project)
[Survival Knife] Skyfish wa Oyogenai | Skyfish Can Not Swim (COMIC HAPPINING Vol. 1) [Chinese] [沒有漢化]
[Bosshi] Mizugi Kanojyo / Her Swimsuit Consequences
Catgirl Battle 7 ~Let's Have Fun With Swimsuits~
(CT24) [Cannabis, Mine Noujou (Shimaji, Mine Mura)] Wolf Sheep Lesson (THE iDOLM@STER SideM) [Chinese] [无毒汉化组]
(C77) [Monte Carlo-ya (Sena Monaco)] Innyuu Lesson (DREAM C CLUB)
Seritore Love☆Swim | Competition training Love☆Swim
(iDOL SURVIVAL) [Shin Hijiridou Honpo (Hijiri Tsukasa)] SR Muchimuchi Lesson (THE IDOLM@STER CINDERELLA GIRLS)
[Yuuzu Tsushiro] Mesuochi Lesson | 牝墮落淫猥課程 [Chinese]
Swimpool | IS IT OKAY TO GET WET? Ch. 12
(SPARK6) [NEVER GIVE UP, SoW (Nekonattou, Ruko)] Honey Coming Sweet Love Lesson (Uta no Prince-sama) [English] [Brolen] [Incomplete]
[Hayake] Sensei to Himitsu no Jugyou | Secret Lessons with Sensei (COMIC LO 2021-07) [English] {Mistvern} [Digital]
[Desk Work (Ashita)] Mika-chan no Himitsu no Hoshuu | Mika-chan's Secret Supplementary Lessons (THE IDOLM@STER CINDERELLA GIRLS) [English] {Doujins.com} [Digital]
I Can Go Swimming (Ranma 1/2) [English]
[Ariga Tou] Hip Swimming Ch. 5 (COMIC Mugen Tensei 2018-01) [Chinese] [鬼畜王汉化组] [Digital]
(C88) [Attendance Number 26 (Niro)] Cinderella to Ecchi na Lesson (THE IDOLM@STER CINDERELLA GIRLS)
Motto Swimmy!
(C85) [Dark battery (Myouga)] Onii-chan to Lesson (To LOVE-Ru)
(C90) [Kanten Jigenryuu (Kanten)] Bungaku Shoujo no ××× Lesson (THE IDOLM@STER CINDERELLA GIRLS)
The Molester ♡ Study Guidance Essentials+Copulation Lesson with Middle Schoolers Compilation
Kyuuketsu Jokyoushi No Kenzoku Seikatsu ~ Lesson with Vampire ~
(C93) [Kaleido Circus (Nagihashi Coko)] Sendai Nee-san no Yasen Lesson (Kantai Collection -KanColle-) [Chinese] [百合鎮守府藥廠漢化]
[Studio Nunchaku]Kanako Mimura Is In Trouble! Illicit Sex Lesson with Veteran Trainer(THE iDOLM@STER) [Digital]
[Keno Yantarou] Another Lesson
(SC40) [Studio Katsudon (Manabe Jouji)] Swimwear Oukoku | Swimwear Kingdom (Kenkoo Zenra kei Suieibu Umishoo) [English] [CGrascal]
[Garakuta-ya (Neko Gohan)] Dr. Queenstein Last Lesson. (Uchuu Senshi Baldios) [Digital]
[Ohigetan] Chikan Gakushuu Shidou Youryou + Chikan Gakushuu Shidou Youryou ~Kougakunen Muke Koubi Lesson Hen~ | The Molester ♡ Study Guidance Essentials+Copulation Lesson with Middle Schoolers Compilation [English] [Striborg]
Tenkousei JK Elf 3 -Houkago Yagai Jugyou- | High School Elven Transfer Student -After School Outdoor Lessons-
[Shinama] Kyouei! | Shameless Swimming Club [English] {doujin-moe}
[Souko Souji] Himitsu no Umanari Tokubetsu Lesson | The Secret to Horses, Special Lesson (COMIC Tenma 2013-08) [Chinese] [沒有漢化] [Colorized]
Swimsuit Attaaack!
[Kanyapyi] Tsundere School Mizugi | Tsundere School Swimsuit (Comic Megastore 2008-11) [ENG] [Yoroshii]
Atashi no Mizugi ga Suki? | Do You Like My Swimsuit?
[Shimau Seisakujo (Shimau Sorine)] Futanari Onnanoko ga Kyouei Mizugi no Onee-san to Ecchi suru Hon | A Book Where a Futanari Girl Gets Naughty With an Onee-san While Wearing a Swimsuit [English] [Erokawa_senpai]
(C81) [Nekomataya (Nekomata Naomi)] Futari no First Lesson | Our First Lesson (THE iDOLM@STER) [English] {doujin-moe.us}
J⬛ Aidoru Himitsu no Lesson♪ | J⬛ Idol's Secret Lesson♪
(C81) [Nanairo Koubou (Martan)] SWIM ANGEL
(C90) [S.S.L (Yanagi)] Rider-san to Kyouei Mizugi. | Rider-san and Swimsuit (Fate/stay night) [English] [NinjaProVI]
[MG Joe] First-Lesson
(C92) [Roshiman (Arimura Ario)] Muhouchitai no Arukikata Lesson 2 "Seikou Houshuu" (Dragon Quest III)
[Shimoyakedou (Ouma Tokiichi)] After Lessons (THE iDOLM@STER) [Digital]