Sweet love & sex between lovers! The protagonist starts going out with a girl in his class, Rikka. However, she is self-willed, loses her temper easily and acts big. So their physical relation hardly advances. The protagonist makes up his mind and invites her to his room... [Edited from DLsite English]
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Koibito = Love x Sex 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.
| Name | Score | Importance | Weight |
|---|---|---|---|
| Modern Tsundere Heroine | 3.00 | 1.76 | 5.27 |
| Protagonist's Girlfriend as a Heroine | 2.00 | 1.89 | 3.78 |
| School | 2.00 | 1.50 | 2.99 |
| Protagonist in Relationship | 2.00 | 1.45 | 2.91 |
| Big Breast Sizes Heroine | 2.00 | 1.27 | 2.55 |
| Student Heroine | 2.00 | 0.97 | 1.94 |
| Heroine with Big Breasts | 2.00 | 0.88 | 1.77 |
| High School Student Heroine | 2.00 | 0.84 | 1.69 |
| Condoms | 1.00 | 1.64 | 1.64 |
| Sexual Content | 2.00 | 0.61 | 1.23 |
| Male Protagonist | 2.00 | 0.30 | 0.60 |
| ADV | 2.00 | 0.14 | 0.29 |
| Name | Characters | Importance | Weight |
|---|---|---|---|
| Flirting Engages in | 4 | 1.81 | 2.91 |
| Gakuran Clothes | 2 | 2.34 | 2.58 |
| Puffy Sleeves Clothes | 3 | 1.85 | 2.57 |
| Sex in Water Engages in (Sexual) | 4 | 1.56 | 2.51 |
| Deep V-Neck Swimsuit Clothes | 1 | 3.46 | 2.40 |
| Flirting Subject of | 2 | 2.14 | 2.35 |
| Big Breasts Body | 6 | 1.19 | 2.31 |
| Tall Body | 2 | 2.07 | 2.28 |
| Female Ejaculation Engages in (Sexual) | 4 | 1.38 | 2.22 |
| Girlfriend Role | 3 | 1.55 | 2.15 |
| Spiky Bangs Hair | 7 | 1.01 | 2.10 |
| Unusual Eyebrows Hair | 1 | 3.02 | 2.09 |
| Spiky Bun Hair | 1 | 2.95 | 2.05 |
| Bikini Clothes | 3 | 1.46 | 2.03 |
| Teasing Engages in | 3 | 1.46 | 2.03 |
| Missionary Subject of (Sexual) | 5 | 1.11 | 2.00 |
| Deepthroat Engages in (Sexual) | 2 | 1.81 | 1.99 |
| Flower / Plant Items | 1 | 2.83 | 1.96 |
| Miniskirt Clothes | 5 | 1.07 | 1.91 |
| Boobjob Engages in (Sexual) | 5 | 1.06 | 1.90 |
| Masturbation Engages in (Sexual) | 3 | 1.37 | 1.90 |
| Pocket Square Clothes | 1 | 2.73 | 1.90 |
| Slit Skirt Clothes | 1 | 2.69 | 1.87 |
| Twin Boobjob Subject of (Sexual) | 1 | 2.67 | 1.85 |
| Teasing Subject of | 2 | 1.68 | 1.84 |
| Intake Hair | 2 | 1.66 | 1.83 |
| Pervert Personality | 2 | 1.65 | 1.81 |
| Sleeveless Sweater Clothes | 1 | 2.54 | 1.76 |
| Sex in Public Places Engages in (Sexual) | 3 | 1.26 | 1.75 |
| Half Updo Hair | 1 | 2.52 | 1.74 |
| Ribbon Tie Clothes | 3 | 1.24 | 1.72 |
| Clothing with Ribbons Clothes | 2 | 1.56 | 1.72 |
| School Nurse Role | 1 | 2.46 | 1.70 |
| Trench Coat Clothes | 1 | 2.45 | 1.70 |
| Modern Tsundere Personality | 1 | 2.44 | 1.69 |
| Friend Role | 3 | 1.21 | 1.68 |
| Vest Clothes | 2 | 1.53 | 1.68 |
| Violet Eyes | 4 | 1.04 | 1.67 |
| Computering Engages in | 1 | 2.40 | 1.66 |
| Sex in Front of an Audience Engages in (Sexual) | 2 | 1.51 | 1.66 |
| Sister Complex Personality | 1 | 2.38 | 1.65 |
| Blue Hair | 3 | 1.19 | 1.64 |
| Deepthroat Subject of (Sexual) | 1 | 2.36 | 1.64 |
| Cunnilingus Subject of (Sexual) | 3 | 1.17 | 1.62 |
| Group Sex Engages in (Sexual) | 2 | 1.45 | 1.59 |
| Pantyhose Clothes | 2 | 1.42 | 1.56 |
| Cooking Engages in | 2 | 1.41 | 1.55 |
| Straight Hair | 4 | 0.96 | 1.54 |
| Cowgirl Subject of (Sexual) | 4 | 0.95 | 1.53 |
| Body Ribbon Clothes | 1 | 2.21 | 1.53 |
| Tareme Eyes | 3 | 1.09 | 1.52 |
| Footjob Subject of (Sexual) | 1 | 2.18 | 1.51 |
| Boobs on Glass Subject of (Sexual) | 1 | 2.14 | 1.49 |
| Parted to Side Hair | 3 | 1.07 | 1.48 |
| Ankle Length Hair | 1 | 2.10 | 1.46 |
| Medical Doctor Role | 1 | 2.09 | 1.45 |
| Anal Fingering Engages in (Sexual) | 1 | 2.06 | 1.43 |
| Curtained Hair | 2 | 1.30 | 1.42 |
| Sixty-nine Engages in (Sexual) | 2 | 1.25 | 1.38 |
| Betrothed Role | 1 | 1.98 | 1.37 |
| High School Student Role | 4 | 0.84 | 1.35 |
| Classmate Role | 2 | 1.23 | 1.35 |
| Military Uniform Clothes | 1 | 1.93 | 1.34 |
| Antenna Hair | 1 | 1.92 | 1.33 |
| Ribbon Hair Tie Clothes | 2 | 1.18 | 1.30 |
| Boobjob Subject of (Sexual) | 1 | 1.87 | 1.30 |
| Naked Apron Clothes | 1 | 1.87 | 1.29 |
| Short-tempered Personality | 1 | 1.86 | 1.29 |
| Doggy Style Subject of (Sexual) | 3 | 0.92 | 1.28 |
| Outdoor Sex Engages in (Sexual) | 2 | 1.16 | 1.27 |
| Sitting Sex Engages in (Sexual) | 1 | 1.83 | 1.27 |
| Son Role | 1 | 1.83 | 1.27 |
| Lab Coat Clothes | 1 | 1.79 | 1.24 |
| Boku Personality | 1 | 1.79 | 1.24 |
| Mobile Phone Items | 1 | 1.78 | 1.23 |
| Cheerful Personality | 1 | 1.78 | 1.23 |
| Hair Ribbon Clothes | 1 | 1.77 | 1.23 |
| Anal Sex Engages in (Sexual) | 1 | 1.77 | 1.23 |
| Blowjob Engages in (Sexual) | 4 | 0.76 | 1.22 |
| Twin Boobjob Engages in (Sexual) | 1 | 1.76 | 1.22 |
| Handjob Subject of (Sexual) | 1 | 1.76 | 1.22 |
| Missionary Engages in (Sexual) | 1 | 1.75 | 1.21 |
| Skirt Suit Clothes | 1 | 1.74 | 1.21 |
| Teen Body | 6 | 0.61 | 1.19 |
| Cowgirl Engages in (Sexual) | 1 | 1.72 | 1.19 |
| Hoodie Clothes | 1 | 1.71 | 1.19 |
| Anal Fingering Subject of (Sexual) | 1 | 1.71 | 1.19 |
| Footjob Engages in (Sexual) | 1 | 1.71 | 1.19 |
| Naive Personality | 1 | 1.71 | 1.18 |
| School Uniform Clothes | 4 | 0.74 | 1.18 |
| Short Hair | 6 | 0.61 | 1.18 |
| Doggy Style Engages in (Sexual) | 1 | 1.70 | 1.18 |
| Virgin Sex Engages in (Sexual) | 3 | 0.84 | 1.17 |
| Sitting Sex Subject of (Sexual) | 2 | 1.05 | 1.16 |
| Cyan Eyes | 1 | 1.67 | 1.16 |
| Vaginal Fingering Engages in (Sexual) | 1 | 1.62 | 1.13 |
| Senpai Role | 1 | 1.61 | 1.11 |
| Slim Body | 6 | 0.57 | 1.11 |
| Apron Clothes | 1 | 1.58 | 1.09 |
| Cunnilingus Engages in (Sexual) | 1 | 1.56 | 1.08 |
| Teacher Role | 1 | 1.55 | 1.07 |
| Sidehair Hair | 2 | 0.98 | 1.07 |
| Young-adult Body | 3 | 0.77 | 1.07 |
| Blowjob Subject of (Sexual) | 1 | 1.53 | 1.06 |
| Pendant Necklace Clothes | 1 | 1.53 | 1.06 |
| Necklace Clothes | 1 | 1.50 | 1.04 |
| Mother Role | 1 | 1.47 | 1.02 |
| Seventh Posture Subject of (Sexual) | 1 | 1.45 | 1.01 |
| Not a Virgin Role | 1 | 1.45 | 1.00 |
| Twin Blowjob Engages in (Sexual) | 1 | 1.44 | 1.00 |
| Brown Eyes | 2 | 0.90 | 0.99 |
| Blond Hair | 2 | 0.88 | 0.97 |
| Tsurime Eyes | 1 | 1.38 | 0.95 |
| Not Sexually Involved Engages in (Sexual) | 1 | 1.36 | 0.94 |
| Brown Hair | 3 | 0.68 | 0.94 |
| Adult Body | 1 | 1.36 | 0.94 |
| Wavy Hair | 1 | 1.36 | 0.94 |
| Bukkake Subject of (Sexual) | 1 | 1.34 | 0.93 |
| Ahegao Engages in (Sexual) | 1 | 1.33 | 0.92 |
| Pink Hair | 1 | 1.32 | 0.92 |
| Ahoge Hair | 1 | 1.31 | 0.91 |
| Waist Length+ Hair | 2 | 0.80 | 0.88 |
| Blue Eyes | 2 | 0.80 | 0.88 |
| Friendly Personality | 1 | 1.23 | 0.85 |
| Violet Hair | 1 | 1.19 | 0.82 |
| Anal Sex Subject of (Sexual) | 1 | 1.19 | 0.82 |
| Pale Body | 8 | 0.37 | 0.82 |
| Handjob Engages in (Sexual) | 1 | 1.16 | 0.80 |
| Twin Tails Hair | 1 | 1.12 | 0.78 |
| Ponytail Hair | 1 | 1.10 | 0.76 |
| Kind Personality | 1 | 1.04 | 0.72 |
| Thigh-high Stockings Clothes | 1 | 1.03 | 0.72 |