Sperm Experiment

(C79) [St. Rio (Kitty, Naoki)] Toaru Majutsu no Sperma Interceptor 1 (Toaru Majutsu no Index)

Sperm-star Chapter 7

Seishun Hatsutaiken | First Experience Of Youth

[Somejima] Kyoufu Taiken! Invisible | Experience Fear! Invisible (Comic Unreal Chounouryoku de Yaritai Houdai Vol.1) [English] [CGRascal] [Digital]

Ore ga Dairi Tanetsuke Suru Koto ni Natta Hitozuma Tachibana Shizuka-san wa Nannimo Shiranai! | Shizuka Tachibana, the Housewife Who Collects My Sperm Donations, Doesn’t Know a Damn Thing!!

Sperma Nakadashi Online 004

Energy Kyo-ka!! Soushuuhen 1 NukiSuppo Hen Ch. 1

[Mink] [Full Color Seijin Han] Yakin Byoutou・San Experiment.1 Complete Ban [Digital]

Zetsurin Hishou Spermax ~Majuu Doku Senjou Mission~

[King] 外星人实验 Alien experiment [Chinese]

[GOLD DUST (Tange Suzuki)] Ougon Taiken - Gold Experience [Chinese] [臭鼬娘漢化組] [2016-08-01]

[Pamunosu (Koppamu)] Zetsurin Hishou Spermax ~Shinjin Ikusei, Jigoku no Sakusei Tokkun~ [Digital]

Hatsutaiken, Jeanne | Jeannes First Sexual Experience

[Inaba Cozy] Jitsuroku! Taiken Chikan-Densya | Authentic Account! Experience! Molestation Train (Mesuiki!! Nyotaika Yuugi) [English] [desudesu] [Digital]

Kabane Hanshoku Jikken | Experimento de reproducción Kabane

Shikyuu Seishi Kudasai | Please Give Me Sperm

[Kanbotan] Aru Hi no Dekigoto ~ Saimin Jikken ~ | A Certain Day's Incident ~Hypnotism Experiment~ [English] =LWB=

I was a bride when I became a woman? First experience with my sister's fiancé 2

Jikken Shippai | Failed Experiment

Ane Taiken Shuukan | The Older Sister Experience for a Week Ch. 1-3

[Fanatic Fetish (Tsukioka Kirio)] Spermagic

[Michiking] Ane Taiken Jogakuryou 1-11 | Older Sister Experience - The Girls' Dormitory [English] [Yuzuru Katsuragi] [Digital]

[Pamunosu (Koppamu)] Zetsurin Hishou Spermax - Semai Duct wa Kiken ga Ippai [Digital]

Bradamante Sperm Brothers

(C58) [BLACK DOG (Kuroinu Juu)] Gold Experience (Sailor Moon) [English] {Tithonium}

[BLAZE (Scotch)] GOLDEN EXPERiMENT Ver.0 (KiMiKiSS)

[Spirits of Sperm - 液体の友社 (Shachi - しゃち)] みずほ先生のミルクレッスン (Onegai Teacher)

[Ooi Hanimaru] Experi [Digital]

(SC65) [Nukidamari (DENSUKE)] Spermanager Kiyoko-san (Haikyuu!!)

Shokushu Chireiden ~Futanari Remodeling Experiment~

Ane Taiken Shuukan | The Older Sister Experience for a Week ch. 1-5

Yukari to Remilia

Kouhai Jikken | Mating Experiment

[Akitsuki Itsuki] Tousaku Saimin Jikken [Case. 3] | Perverted Hypnosis Experiment [Case. 3] (Tousaku Saimin Jikken - Nakadashi Oshioki Bukatsudou) [English] [desudesu]

Kaku fuzoku taiken repo-fu manga | Fictional Brothel Experience Report Manga

Alien Experiment

[Agata] Boku no Otona Shokugyo-taiken - My Adult Work Experience Ch. 1-7 [English] [Digital]

(C86) [Dr. VERMILION (Petenshi)] EXPERIMENT (Toaru Kagaku no Railgun) [Chinese] [lordsky29個人漢化&game8210整合]

Seikoui Jisshuu 2 | Sexual Experimentation Practice! 2

Sperma Kental! Enkou-chan!!

[NAVY (Kishuu Chokkou)] Sakuseieki Machine Soushuuhen Vol. 1 | Automatic Sperming Machine Vol. 1 (Various) [English] [EHCOVE] [Digital]

(COMIC1☆9) [Apple Water (Ringo Sui)] Hoppo-chan Hajimete no Seitsuu Hon | A book about Hoppo-chan’s first sexual experience (Kantai Collection -KanColle-) [English] [Tabunne Scans]

JOKER Experience

[Pettan Doujou (PettanP)] Saimin Ochi Kyonyuu Shimai wa Semen ga Daisuki | The Big Breasted Sisters Who've Fallen To Hypnosis Love Sperm [English] {Doujins.com} [Digital]

(C75)[Chokudokan (Hormone Koijirou, Marcy Dog)] SPERMA ANGELS 4

[Mink] [Full Color Seijin Han] Yakin Byoutou・San Experiment.2 Complete Ban [Digital]

(COMIC1☆7) [GENETRIX (GEN)] sperma card attack!! Eiyashou Mokou Hen SP (Touhou Project)

Mama-Goto 2 - Sperm Donor

(C79) [Carrot Works (Hairaito)] Sperma & Sweets with Villager (Panty & Stocking with Garterbelt)

Toaru Majutsu no Sperma Interceptor 1 | 某魔术的强制受精1

(C99) [Espoir no Okashi (Pokoten)] Ichinichi Nyuugyuu Taiken ~Oishii Milk ga Dekiru made~ | 1 Day Dairy Cow Experience ~Till Delicious Milk is Made~ [Digital]

[Amezawa Koma] Dokidoki Taiken! | Heart Throbbing Experience Part 1-2 [English]

[Misawa Hiroko] Onee-san no Fude Oroshi | First Sexual Experience With Sister (COMIC Himezakura 2005-04 Vol. 004) [English] [HT Manga] [Decensored]

(CR35) [D'ERLANGER (Yamazaki Show)] Ichigo ∞% 1: First Experience (Ichigo 100%)

Mikogami's diaper experience

Sperm-star Chapter 8

(COMIC1☆11) [Nukidamari (DENSUKE)] Spermanager Kiyoko-san 3 (Haikyuu!!)

[Rokuroku Bin] Inrei Taiken Ch. 5 ~Iwakutsuki Kyoushitsu de Ananie ni Fukeru Hentai Kyoushi no Hanashi~ | Sexual Paranormal Experience ~The Story About The Teacher Who Masturbates With Anal In A Classroom With a History~ [English] {Doujins.com}

Watashi ni Seishi ga Maiorita! | Sperm Flew Down to Me!

[Kamirenjaku Sanpei] Houkago Nekomimi Fuck! | After School Cat Ear Fuck!! (Tonari no Sperma San) [English] [UsagiTrans]

Zetsurin Hishou Spermax

Jitsuroku! Taiken Chikan-Densya | Authentic Account! Experience! Molestation Train

[Shiroganean (Mitsuhime Moka)] Tada Hitasura. ~Shinkon Nouka no Orenchi ni Shokugyou Taiken ni Kita JK ga Mechakucha Ero katta Sei de~ | Single-Minded Devotion. ~The Girl Who Came To My Farmhouse For Work Experience Was Just Too Hot!~ [English] [Raynne]

[KeinV] Sperm donation

Sperm-star Chapter 3

Sae no Sakusei Nikki | Sae's Sperm Milking Journal

(ToHeartSai 2) [LALA STUDIO (Ayase Shinomu)] human experimentation (ToHeart2)

Jikkentai "Punky poppet" | Punky Poppet Experiment

(C58) [BLACK DOG (Kuroinu Juu)] GOLD EXPERIENCE (Sailor Moon) [2nd Edition]

[Michiking] Ane Taiken Shuukan | The Older Sister Experience for a Week [English] [PSYN] [Digital]

[Ryoumoto Hatsumi] Renai Kagaku Jikken - A Scientific Experiment for Love

[RaTe] Ane to Megane to Milk - Sister, glasses and sperm. [English] [TCup]

[Tendou Itto] A Clinical Experiment on the Sexual Response of a Female Student [English]

(C75) [Kouyadou (Mizuki Eimu)] Ganzfeld Experiment (Telepathy Shoujo Ran)

[Tennen Buri] Imouto ★ LOVE Experiment

[Anthology] Kinshinsoukan & SM Taiken 1 -Incest & SM Experience 1-

Zetsurin Hishou Spermax

[Ichinose Land] Zako Succubus-chan wa Semen ga Hoshii no! | This Small Fry Succubus-chan Wants Your Sperm! [English] {Doujins.com} [Digital] [Decensored]

(C82) [Chokudoukan (Marcy Dog, Hormone Koijirou)] Sperma Angels 5 (Various)

You are My Experimental Dragon | Kimi wa Boku no Jikken Ryu

[Shishoku Gankou] Hatsu Taiken. - Beginning Experience

Spermaniax Ch.02

(C58) [BLACK DOG (Kuroinu Juu)] GOLD EXPERIENCE (Bishoujo Senshi Sailor Moon) [English]

[Sonna no ato no Matsuri janai desuka (Morino.)] 3-nenme no Uwaki Onna Otto no Shinyuu no Kodane o Shiboru | Unfaithful Wife of Three Years - Draining My Husband's Best Friend's Sperm [English] [rubber_user]

(C68) [PHANTOMCROSS (Miyagi Yasutomo)] THE EXPERIENCE OF WALKURE (Valkyrie no Bouken)

Chieri can't lose! 3 -Perverted toilet wife who fertilizes anyone's sperm with her husband's official approval- Volume 2 [Chinese] [超勇漢化組]

[Ishiyakimeron] Toma X Hazu Experiment (Kashimashi ~girl meets girl~)

[Mugen Garou (Itaka Jin)] Tear of the SKY (Serial Experiments Lain)

[Calpis Koubou] Tairyou Shasei Sperm! 4 (Mahou Sensei Negima!) [Digital]

KAMEHASUTRA Minus Hanatareta Musuko no Seieki | KAMEHASUTRA - Goten Firing Out His Sperm

Sperm-star Chapter 1

[Waffle Doumeiken (Tanaka Decilitre)] Joukyuu Seishi Chakushou Gimuka!? EX1 ~Class no Takane no Hana no Hentai Seiheki~ | Mandatory Superior Sperm Implantation! EX1 ~The Perverted Desires of the Unattainable Class Flower~ [English] [Digital]

TS Rinkan Sakusei: Zenpen | Gender Bender Gangbang Sperm Milking part2

[R.C.I (Hazaki)] Uniform sperm [Digital]

First sexual experience & 2 weeks later

Monster Girl Breast Preference ~Robot Girl and MechMaster's Milking Experiment~

First Experience Ch.1-2 (English) (Ongoing)

(C80) [GENETRIX (GEN)] sperma card attack!! Eiyashou Mokou hen (Touhou Project)

Nijiiro Taiken - Nijiiro Experience

Sperm Nakadashi Online 3

Natsu No Taiken Summer Experience

[Hakomaru] Kenkyuu Taishou ~Rizu Chousakan~ (Experiment subject ~Liz the investigator~) [English] [Kuraudo]

Toaru Saten no Experience - Saten's Experience.

[GOLD DUST (Tange Suzuki)] Ougon Taiken 2 - Gold Experience 2 [Chinese] [臭鼬娘漢化組]

[Kuroni] Hands-On Ranch Experience [English]

[Sanagi Torajirou] Jikken Shimai | Experiment Sisters (COMIC Megastore Alpha 2014-12) [English] [thetsuuyaku]

Mesuinu Taikenki | Bitch Experience Note

Koshiki Experience Part 1 & 2 (Sachisuke Masumura, Japanese, another "Cut in half")

[Hisui, Yamu] 2D Comic Magazine Futanari Shokushu Sakusei Shasei Kairaku ni Oboreru Heroine-tachi | 2D Comic Magazine Futanari Tentacle Sperm Squeezing - The Heroines Who Drown In The Pleasure Of Ejaculating Vol. 2 Ch.1-2 [English] [Doujins.com] [Digital]

(C94) [Umi no Sachi (Suihei Sen)] Onekatsu no Susume | The Big Sister Experience Recommendation [English] [Redlantern]

Ane to Megane to Milk - Sister, glasses and sperm

Kankaku Shadan Jikken Shippai

(C99) [Ajino Hiraki] SPERM❤️BLOCKER (BOMBER GIRL) [Digital]

[Michiking] Ane Taiken Jogakuryou Chapters 1-1.5 | Older Sister Experience - The Girls' Dormitory [English] [Yuzuru Katsuragi]

Rainbow-colored Experience

Nama de Naka o Ippai ni Shite. - Please! Fill vagina with sperm.

Paizuri Sakusei Slime ni Makeru Manga | A Manga About Losing to a Titfucking, Sperm Extracting Slime

[Dakkoku jirou] A manga about losing to a sperm extracting slime's paizuri