[Nishi Iori] Love Doll
When one dor closes another dor opens
COMIC X-EROS #44
(C78) [Studio N.BALL (Haritama Hiroki)] OPEN MUSIC!! (K-ON!)
[Abura Katabura (Papipurin)] Innyuu Reijou - Naburare Chichi (Dragon Quest VIII)
[Abura Katabura (Papipurin)] Ani-kun ii no ... Chikage (Sister Princess)
giri no otōto ga kawaisugitanode kōbi shima kuru !
PIPER 1
Oyajigari Shita Kurogyaru JK wo Kankin Namahame Ninshin Rape! !
(COMIC1☆10) [BooBooKid (PIP)] Canon-sensei to Sakura-sensei ni Iroiro Shite Mita. (Soukyuu no Fafner)
Muchimuchi Jimiko o Haramaseru
Sensei to Seito no Kankei tte Konna ni mo Open nanoo!? | Are Teacher-Student Relationships This Open?!
Sanae-san to Cosplay Ecchi Shiyo
Comic Papipo 1993-08
(C57) [Studio Huan (Various)] PIPER GTS (Various) [English] [Incomplete]
[Midoh Tsukasa] Takarabako Akema SHOW!! | Let's Open the Treasure Chest!! (Setsubun Girls) [English] [Tonigobe]
(C88) [Mata Ashita. (Oohira Sunset)] Atsu Atsu Anira | Piping Hot Anila (Granblue Fantasy) [English] [Aoitenshi]
PIPER 3
(C65) [STUDIO HUAN (Raidon)] PIPER 3 (Street Fighter)
FE no Iroiro na Chara ni Iroiro Shitemita.
[BooBooKid (PIP)] Riko Kantoku ni Hazukashii koto wo Iroiro Shite mita. | I wanna control Riko and make her do lots of humiliating things. (Kuroko no Basuke) [English]
Open Water!
[Pokopen-Honpo (Shikato Miyo)] KISS ME, KISS ME, KISS ME (Futari wa PreCure) [Digital]
Sono Hako wa Hirakareru Hi o Matteiru | Waiting for the Day that Box is Opened
(C86) [Sakekan Memorial (SOLOPIPB)] Shiragasane
(C74) [COPEN (Randou)] Dizzy wa Boku no Mono da! | Dizzy is Mine! (BOOST!) (Guilty Gear XX) [English] [q91] [Decensored]
Layers of White
[Abura Katabura (Papipurin)] G (Gundam Seed) [English] [HMedia]
(COMIC1☆9) [BooBooKid (PIP)] Kujikawa Rise ni Hazukashii Koto o Sasete mita. (Persona 4)
(Bokura no Love Live! 8) [Komagome Pipette (MADO)] Futanari Shoujo ni Miserarete (Love Live!) [English] [SMDC]
(C72) [INUGATA SUMMIT ( Fujino)] Open Invitation (Togainu no Chi) [English] [JenOva99]
[Kawaraya A-ta] Copipe! - Copy Paste
(C90) [Sakekan Memorial (SolopipB)] Koishirete Uwabami! (Fate/Grand Order) [English] [NepNep]
(C80) [Parameter (S Parameter)] OPEN AIR (K-ON!)
(C78) [Pokopen-honpo] Inami Mahiru de Shite Ageru (Working!!)
Shazai vol.18
(Shota Scratch 18) [88scones (Sakaki Tsui)] Houkago Hisho Note | Afterschool Secretary Notebook [English] =SW=
(C86) [Sakekan Memorial (SOLOPIPB)] Shiragasane | Layers of White 2 [English]
(Shota Scratch 09) [Ad-Hoc, Fuwawa] Milk Caramel (Net Ghost PiPoPa)
Legs Wide Open Pissing Girls
Jikakushoujou ni tsuite | About Obvious Symptoms
COMIC Papipo Gaiden 1997-04
Me o Hiraitemo, 3 Senchi | Even if I Open My Eyes, 3 Centimeters
[Abura Katabura (Papipurin)] Abura Katabu-love Hina 2 (Love Hina)
[Pipe de Ooabare (Ieame-sama)] Dullblade4a (Original)
COMIC X-EROS #49
(C95) [Sakekan Memorial (SOLOPIPB)] Shiragasane -Tsuzure- [English] [TSHH]
Eropen
[Usuno Taro] Hyoui Kan Kishi Stallion Kimo Otoko ni Nottorare Buzama Zecchou! | Possessed Knight Stallion -Taken Over By Disgusting Man Raped and Climaxes Unsightly- Ch. 2 [English]
[Reitomo bekkan (Carawey)] ALWAYS OPEN! (Lamento -Beyond the Void-) [Digital]
Comic Papipo 1998-10
[Sakekan Memorial (SolopipB)] Koidorete Uwabami!! (Fate/Grand Order) [English] [葛の寺] [2017-05-22]
(CR27) [Abura Katabura (Papipurin)] Kasumi Jigoku Hen (Dead or Alive)
[Art Post] Kokoro Hodokeba | If You Open Your Heart (COMIC Anthurium 2018-06) [English] [Team Koinaka] [Digital]
COMIC Papipo 2000-04 [Incomplete]
Hypnotism notebook
Shazai vol.15
[Manpuchi (Nekodel)] Tsuitaiken <POV> Jiko Bukken -1K Kagu Tsuki Kitsune Tsuki- | POV Accident Property ~1 Room & Kitchen, Appliances Included, Fox Possessed~ [English] [Penguin Piper] [Digital] [Digital]
(C68) [Kokonokiya (Kokonoki Nao)] Pokopen no Nagai Gogo (Keroro Gunsou)
Yuuyuu Kanmusu Shikiyokuroku Sono San
COMIC Papipo Gaiden 1995-11 Vol.17
Crystalloid no Ganbou
(C69) [Komorebi-notebook (Momiji Mao)] Udonge @ Ecchi na omimi keihou! (Touhou Project)
(Chou OPEN THE GATE! 2021) [TAPPURI (Enough)] Osatou wa Amaku, Anata mo Suteki (SK8 The Infinity)
[E-musu Aki] Torokeru Asobi | Melty Play CH.6~14[Decensored]
白襲-繕/綻- (Sample)
[Pipasuta (Pipa)] Chuunen Kyoushi to Bitch Oshiego no JK Enjo Kousai
My Home Tutor Leaves Herself Wide Open
[Kishizuka Kenji] Shin Konya Tonikaku XX ga Mitai
Kaikinbi. | Opening season
[OPEN BOOK (Toumi Haruka)] Night Spark Down (Scrapped Princess)
[Pokopen-Honpo (Shikato Miyo)] Aimai na Aji no? Ichigo Tamago (I My Me! Strawberry Eggs)
(C71) [O-Chu-Gen] PPGZH (Demashita Powerpuff Girls Z) [English] [desudesu]
Lymphae
[orico] Open Air [Chinese]
[Shiwasu no Okina] Ero Pippi
[Orange Opener (hard)] Chicchana Succubus-chan ni Ii You ni Sarechau Hon [Digital]