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Summary

Toa is in love with her younger sister Tsubasa. She dreams of bathing with her, sleeping with her, kissing her, and of course having sex with her. One day her sister suddenly grows a penis and an opportunity Toa never dreamed of presents itself.

DARCROWS
DARCROWS
NAN%
Tags
  • Royal Heroine
  • Western-style Castle
  • Prostitution
  • Sex Involving Prostitution
  • Medieval Fantasy
Rating 6.8226 Users
Moujuu-tachi to Ohime-sama
Moujuu-tachi to Ohime-sama
NAN%
Tags
  • Bodyguard Hero
  • Princess Protagonist
  • Animals
  • Mage Hero
  • Child Support Character
Rating 6.0626 Users
Poko Poko Imouto ~Inu Imouto Pet Ganbou~
Poko Poko Imouto ~Inu Imouto Pet Ganbou~
NAN%
Tags
  • Lolicon
  • Petplay
  • Only Blood-related Heroines
  • Protagonist's Sister as a Heroine
  • Voiced Thoughts
Rating 6.1316 Users
Harem Game 2 ~Futsuu ja Nai Shujinkou ga Harem o Kizuku Fantasy (?)~
Harem Game 2 ~Futsuu ja Nai Shujinkou ga Harem o Kizuku Fantasy (?)~
NAN%
Tags
  • Invisibility
  • Heroine from a Different World
  • Model Heroine
  • Twincest
  • Oppai Loli Heroine
Rating 6.5942 Users
NDNL2 -No Dog, No Life-
NDNL2 -No Dog, No Life-
NAN%
Tags
  • Dogs
  • Consensual Sex with Animals
  • Bestiality
  • Corruption of Characters
  • High-Tech Sex Engine
Rating 6.3520 Users
Tokimeki Memorial 2
Tokimeki Memorial 2
NAN%
Tags
  • Protagonist with Voiced Changeable Names
  • 2000s
  • 90's
  • Dating Simulation
  • Valentine's Day
Rating 7.8954 Users
Dyogrammaton
Dyogrammaton
NAN%
Tags
  • Mecha Pilot Heroine
  • Completely Avoidable Heroine Rape
  • Military
  • Evil Route
  • Macho Protagonist
Rating 6.6117 Users
Hime-sama Love Life!
Hime-sama Love Life!
NAN%
Tags
  • Protagonist's Half-sister as a Heroine
  • Boke Heroine
  • Half-orphan Protagonist
  • Family Life Comedy
  • Princess Heroine
Rating 7.0443 Users
Futaimo Days ~Onii-chan, Naisho de Shiyo♪~
Futaimo Days ~Onii-chan, Naisho de Shiyo♪~
NAN%
Tags
  • Shimaidon with Twins Ending
  • Twin Bellyjob
  • Twin Sisters as Heroines
  • Threesome Ending
  • Unavoidable Harem Ending
Rating 5.8919 Users
Mai Yome ~My Yome~
Mai Yome ~My Yome~
NAN%
Tags
  • Sex Involving Children
  • Only Younger Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Only Loli Heroines
  • Deredere Heroine
Rating 5.6020 Users
Onii-chan, Migite no Shiyou o Kinshi Shimasu! 2
Onii-chan, Migite no Shiyou o Kinshi Shimasu! 2
NAN%
Tags
  • Siscon Protagonist
  • Beach
  • Only Protagonist's Sisters as Heroine(s)
  • Protagonist's Full Sister as a Heroine
  • Summer
Rating 5.9427 Users
Kyonyuu Jukujo Kyoushi ~Furyou ni Yarareta Arafor Haha to Gakuen no Idol~
Kyonyuu Jukujo Kyoushi ~Furyou ni Yarareta Arafor Haha to Gakuen no Idol~
NAN%
Tags
  • Heroine with Armpit Hair
  • Heroine with Sport Bloomers
  • Oyakodon Ending
  • Big Ass Heroine
  • Blowjob Duck Face
Rating 5.9935 Users
Pure Marriage ~Akai Ito Monogatari - Sakura Hen~
Pure Marriage ~Akai Ito Monogatari - Sakura Hen~
NAN%
Tags
  • Protagonist's Wife as a Heroine
  • Childhood Friend Support Character
  • Wedding
  • Protagonist's Full Sister as a Heroine
  • Blood-related Brother/Sister Incest
Rating 6.5322 Users
Chikan Densha Kyonyuu Otori Sousakan ~Nerawareta Ureta Nikutai~
Chikan Densha Kyonyuu Otori Sousakan ~Nerawareta Ureta Nikutai~
NAN%
Tags
  • Molestation on Public Transport
  • Unavoidable Protagonist Rape
  • Chikan
  • Sexual Slavery (Choukyou Variation)
  • Sex in a Vehicle
Rating 6.2723 Users
Oni Chichi After ~Nure Suke Airi to Amayadori Hen~
Oni Chichi After ~Nure Suke Airi to Amayadori Hen~
NAN%
Tags
  • Non-blood-related Father/Daughter Incest
  • Only Protagonist's Relatives as Heroine(s)
  • Rain
  • Only Younger Heroines
  • Half-Japanese Heroine
Rating 6.0422 Users
Ane Imo Mama no Shasei Kanri ~Tsuide ni Kodomo ga Dekichatte mo Ii yo ne~
Ane Imo Mama no Shasei Kanri ~Tsuide ni Kodomo ga Dekichatte mo Ii yo ne~
NAN%
Tags
  • Only Protagonist's Relatives as Heroine(s)
  • Protagonist's Non-blood-related Mother as a Heroine
  • Oyakodon Ending
  • Single Handjob
  • Hairjob
Rating 5.9320 Users
Pure Marriage ~Akai Ito Monogatari - Harem Hen~
Pure Marriage ~Akai Ito Monogatari - Harem Hen~
NAN%
Tags
  • Polygamy
  • Wedding
  • Protagonist's Sister as a Heroine
  • Modern Tsundere Heroine
  • Harem Ending
Rating 6.6527 Users
Walpurgis
Walpurgis
NAN%
Tags
  • Teacher of Magic Protagonist
  • Anal Monster Birth
  • Cum Bath
  • Long Sexual Scenes
  • Mahou Shoujo Heroine
Rating 6.3619 Users
Sora to Kumo to Kimi no Koi
Sora to Kumo to Kimi no Koi
NAN%
Tags
  • Occult Club
  • Hotblooded Heroine
  • Class President Heroine
  • Witch Heroine
  • Otaku Heroine
Rating 6.1030 Users
Maternity Monsters! ~Usamimi Iinchou to Kiyoku Tadashii Nikutai Kankei!~
Maternity Monsters! ~Usamimi Iinchou to Kiyoku Tadashii Nikutai Kankei!~
NAN%
Tags
  • Sex with Monster Girls
  • School Nurse Support Character
  • Rabbitgirl Heroine
  • Class President Heroine
  • Succubus Heroine
Rating 6.5621 Users
Imouto Style
Imouto Style
NAN%
Tags
  • Sprite Filter
  • Protagonist's Twin as a Heroine
  • Harem Ending with Theme
  • Unnamed Protagonist
  • Twincest
Rating 6.8934 Users
Seikan Shimai
Seikan Shimai
NAN%
Tags
  • Body Swapped Sex
  • Body Swapping
  • Protagonist's Cousin as a Heroine
  • Rimming Handjob
  • Genderbent Sex
Rating 6.5521 Users
Imouto ga Saimin Appli o Tsukatte Kita
Imouto ga Saimin Appli o Tsukatte Kita
NAN%
Tags
  • Erotic Mind Control Roleplay
  • Non-erotic Mind Control
  • Protagonist's Younger Sister as a Heroine
  • Protagonist's Full Sister as a Heroine
  • Only Loli Heroines
Rating 6.0125 Users
Futaba☆Channel 2
Futaba☆Channel 2
NAN%
Tags
  • Elementary School Student Protagonist
  • Elementary School Student Heroine
  • Gender Bending
  • Lesbian Lolicon
  • Genderbent Sex
Rating 6.1824 Users
Onii-chan Nechatta?
Onii-chan Nechatta?
26%
Tags
  • Incest Romance
  • Sex Involving Children
  • Protagonist's Full Sister as a Heroine
  • Deredere Heroine
  • Straight Lolicon
Rating 5.7614 Users
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
21%
Tags
  • Obacon
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Only Older Heroines
  • Widow Heroine
Rating 5.7522 Users
Chikan Densha Kyonyuu Otori Sousakan ~Nerawareta Ureta Nikutai~
Chikan Densha Kyonyuu Otori Sousakan ~Nerawareta Ureta Nikutai~
21%
Tags
  • Molestation on Public Transport
  • Unavoidable Protagonist Rape
  • Chikan
  • Sexual Slavery (Choukyou Variation)
  • Sex in a Vehicle
Rating 6.2723 Users
Pure Marriage ~Akai Ito Monogatari - Sakura Hen~
Pure Marriage ~Akai Ito Monogatari - Sakura Hen~
20%
Tags
  • Protagonist's Wife as a Heroine
  • Childhood Friend Support Character
  • Wedding
  • Protagonist's Full Sister as a Heroine
  • Blood-related Brother/Sister Incest
Rating 6.5322 Users
Kyonyuu Jukujo Kyoushi ~Furyou ni Yarareta Arafor Haha to Gakuen no Idol~
Kyonyuu Jukujo Kyoushi ~Furyou ni Yarareta Arafor Haha to Gakuen no Idol~
19%
Tags
  • Heroine with Armpit Hair
  • Heroine with Sport Bloomers
  • Oyakodon Ending
  • Big Ass Heroine
  • Blowjob Duck Face
Rating 5.9935 Users
Mai Yome ~My Yome~
Mai Yome ~My Yome~
19%
Tags
  • Sex Involving Children
  • Only Younger Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Only Loli Heroines
  • Deredere Heroine
Rating 5.6020 Users
Onii-chan, Migite no Shiyou o Kinshi Shimasu! 2
Onii-chan, Migite no Shiyou o Kinshi Shimasu! 2
19%
Tags
  • Siscon Protagonist
  • Beach
  • Only Protagonist's Sisters as Heroine(s)
  • Protagonist's Full Sister as a Heroine
  • Summer
Rating 5.9427 Users
Hime-sama Love Life!
Hime-sama Love Life!
19%
Tags
  • Protagonist's Half-sister as a Heroine
  • Boke Heroine
  • Half-orphan Protagonist
  • Family Life Comedy
  • Princess Heroine
Rating 7.0443 Users
Futaimo Days ~Onii-chan, Naisho de Shiyo♪~
Futaimo Days ~Onii-chan, Naisho de Shiyo♪~
17%
Tags
  • Shimaidon with Twins Ending
  • Twin Bellyjob
  • Twin Sisters as Heroines
  • Threesome Ending
  • Unavoidable Harem Ending
Rating 5.8919 Users
Ane Imo Mama no Shasei Kanri ~Tsuide ni Kodomo ga Dekichatte mo Ii yo ne~
Ane Imo Mama no Shasei Kanri ~Tsuide ni Kodomo ga Dekichatte mo Ii yo ne~
17%
Tags
  • Only Protagonist's Relatives as Heroine(s)
  • Protagonist's Non-blood-related Mother as a Heroine
  • Oyakodon Ending
  • Single Handjob
  • Hairjob
Rating 5.9320 Users
Walpurgis
Walpurgis
16%
Tags
  • Teacher of Magic Protagonist
  • Anal Monster Birth
  • Cum Bath
  • Long Sexual Scenes
  • Mahou Shoujo Heroine
Rating 6.3619 Users
Maternity Monsters! ~Usamimi Iinchou to Kiyoku Tadashii Nikutai Kankei!~
Maternity Monsters! ~Usamimi Iinchou to Kiyoku Tadashii Nikutai Kankei!~
16%
Tags
  • Sex with Monster Girls
  • School Nurse Support Character
  • Rabbitgirl Heroine
  • Class President Heroine
  • Succubus Heroine
Rating 6.5621 Users
Seikan Shimai
Seikan Shimai
16%
Tags
  • Body Swapped Sex
  • Body Swapping
  • Protagonist's Cousin as a Heroine
  • Rimming Handjob
  • Genderbent Sex
Rating 6.5521 Users
Futaba☆Channel 2
Futaba☆Channel 2
15%
Tags
  • Elementary School Student Protagonist
  • Elementary School Student Heroine
  • Gender Bending
  • Lesbian Lolicon
  • Genderbent Sex
Rating 6.1824 Users
Papa, Dakishimete Ageru ~Babumi na Manamusume no Bosei ni Amaete Nakadashi Zanmai~
Papa, Dakishimete Ageru ~Babumi na Manamusume no Bosei ni Amaete Nakadashi Zanmai~
15%
Tags
  • Fathercon Heroine
  • Protagonist's Blood-related Daughter as a Heroine
  • Blood-related Father/Daughter Incest
  • Widow(er) Protagonist
  • Sex on a Roof
Rating 6.2721 Users
Shuffle! Essence+ Tokuten Disk
Shuffle! Essence+ Tokuten Disk
15%
Tags
  • Elf Heroine
  • Twin Sisters as Heroines
  • Kuudere Heroine
  • High School Student Heroine
  • Sexual Content
Rating 7.0938 Users
Is This the Life?
Is This the Life?
15%
Tags
  • Modern Day Europe
  • Family
  • Protagonist with Psychological Problems
  • Father Support Character
  • NVL
Rating 5.9925 Users
Hatsukoi
Hatsukoi
15%
Tags
  • Nakige
  • Slice of Life Drama
  • Timid Protagonist
  • Late Sexual Content
  • Imouto-type Heroine
Rating 6.8357 Users
Kago no Naka no Alicis
Kago no Naka no Alicis
15%
Tags
  • Noble Hero
  • Fighting Hero
  • Unlockable Routes
  • Long Common Route
  • Combat Capable Friends
Rating 6.0423 Users
Hara Poko! ~Inou Saimin de Jogakuen o Haramase Seifuku~
Hara Poko! ~Inou Saimin de Jogakuen o Haramase Seifuku~
15%
Tags
  • All-girls School
  • Discipline Committee Member Heroine
  • School Sports Club Member Heroine
  • Impregnation
  • Superpowers
Rating 6.2022 Users
Harem Mura ~Dousotsu Fukahi! Kodane Teikyou wa Mura no Okite Desu!!~
Harem Mura ~Dousotsu Fukahi! Kodane Teikyou wa Mura no Okite Desu!!~
15%
Tags
  • Birthrate Decline
  • Polygamy
  • Unavoidable Harem Ending
  • Polyamory
  • Sexual Slavery (Consensual)
Rating 6.6357 Users
Manamusume wa, Mazo Seirei ~Musume Dakara tte Enryo Shinaide ne?~
Manamusume wa, Mazo Seirei ~Musume Dakara tte Enryo Shinaide ne?~
15%
Tags
  • Rope Bondage
  • Sadist Protagonist
  • Protagonist's Blood-related Daughter as a Heroine
  • Protagonist with Children
  • Blood-related Father/Daughter Incest
Rating 5.6018 Users
Futaba☆Channel 3
Futaba☆Channel 3
15%
Tags
  • Idol Protagonist
  • Production of Pornography (Professional)
  • Elementary School Student Heroine
  • Heroine with Eye Covering Hairstyle
  • Sex Change
Rating 6.5323 Users
Rakuin Mesu Kyoushi ~Danshikou no Madonna-tachi~
Rakuin Mesu Kyoushi ~Danshikou no Madonna-tachi~
14%
Tags
  • P.E. Teacher Heroine
  • Strip Game
  • School Nurse Heroine
  • Masturbation with Object
  • Heroine with Tan Lines
Rating 6.3014 Users

Imomitsu ~Geki Love Imouto wa Futanari Yousei~ has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
A novel needs atleast 20 owners before it's similarity is calculated.

Tags (44 total)

NameScoreImportanceWeight
Only Futanari Heroines2.003.006.00
Futanari on Female2.502.075.18
Sister/Sister Incest2.002.384.76
Blood-related Sister/Sister Incest2.002.134.26
Double Dildos2.002.094.17
Siscon Protagonist2.002.054.11
Penis Growth2.001.943.88
Wake-up Sex2.001.813.62
Modern Tsundere Heroine2.001.763.53
Piledriver2.001.593.18
School2.001.513.02
Handjob2.001.503.01
Masturbation2.001.492.98
Background Moans2.001.442.87
Lesbian Sex2.501.152.87
Protagonist with Voice Acting2.001.362.72
Few Choices2.001.342.67
Sounds of Copulation2.001.292.58
Student Protagonist2.001.262.51
Futanari Heroine1.251.972.47
Rape2.001.232.45
Bukkake2.001.202.41
Blowjob2.001.112.23
Sixty-nine2.001.072.14
Standing Sex2.001.062.11
Sitting Sex2.001.062.11
Naked Sprites2.001.052.11
Only a Single Heroine2.001.022.04
Outdoor Sex2.001.001.99
Student Heroine2.000.991.98
Missionary Position2.000.941.88
Cunnilingus2.000.931.86
High School Student Heroine2.000.851.70
Cowgirl2.000.841.68
Girl x Girl Romance1.001.611.61
Doggy Style2.000.801.61
Defloration2.000.761.52
Female Protagonist2.000.711.42
Multiple Endings2.000.671.34
Nukige2.000.651.30
Protagonist with a Face2.000.641.28
Sexual Content2.000.631.26
ADV2.000.150.29
2.000.000.00

Traits (60 total)

NameCharactersImportanceWeight
Reverse Missionary Engages in (Sexual)22.362.59
Double-ended Dildo Subject of (Sexual)22.102.31
Over The Knee Socks Clothes21.942.13
Onahole Subject of (Sexual)12.831.96
Reverse Missionary Subject of (Sexual)21.731.91
Sex in Classroom Engages in (Sexual)21.611.76
Wake-up Sex Subject of (Sexual)12.481.72
Modern Tsundere Personality12.431.68
Sister Complex Personality12.381.65
Wake-up Sex Engages in (Sexual)12.361.64
Futanari Body12.351.63
Penis Growth Subject of12.341.62
Female Ejaculation Engages in (Sexual)21.371.50
Sundress Clothes12.141.48
Tominagi Engages in (Sexual)12.121.47
Butterfly Engages in (Sexual)12.021.40
Sixty-nine Engages in (Sexual)21.261.38
Standing Sex Engages in (Sexual)11.871.30
Short (obsolete) Body11.861.29
Outdoor Sex Engages in (Sexual)21.161.27
Sitting Sex Engages in (Sexual)11.831.27
Handjob Subject of (Sexual)11.751.22
Pajamas Clothes11.751.21
Side Tail Hair11.751.21
Missionary Engages in (Sexual)11.741.21
Cowgirl Engages in (Sexual)11.721.19
Doggy Style Engages in (Sexual)11.691.17
Parted to Side Hair21.051.16
Mini-dress Clothes11.641.13
Kouhai Role11.631.13
Older Sister Role11.561.08
Big Breast Sizes Body11.541.07
Blowjob Subject of (Sexual)11.521.06
Pendant Necklace Clothes11.521.06
Smart Personality11.461.01
Younger Sister Role11.441.00
Masturbation Engages in (Sexual)11.390.96
Wavy Hair11.360.94
Tominagi Subject of (Sexual)11.360.94
High School Student Role20.850.93
Blowjob Engages in (Sexual)20.760.84
Red Eyes11.200.83
School Uniform Clothes20.750.83
Ribbon Hair Tie Clothes11.190.83
Standing Sex Subject of (Sexual)11.180.82
Butterfly Subject of (Sexual)11.170.81
Handjob Engages in (Sexual)11.160.80
Missionary Subject of (Sexual)11.120.77
Sitting Sex Subject of (Sexual)11.060.74
Violet Eyes11.040.72
Teen Body20.620.68
Cowgirl Subject of (Sexual)10.950.66
Doggy Style Subject of (Sexual)10.930.64
Blond Hair10.890.62
Virgin Sex Engages in (Sexual)10.850.59
Black Hair10.810.56
Long Hair10.750.52
Short Hair10.610.42
Pale Body20.370.41
10.000.00