Skip to content
🔒 Can't access from overseas? Enjoy Japan-exclusive content with JapanVPN →

TS Big Brother ~Can’t Resist Futanari Sister Despite Chastity Vow~

    Tags:
    Home › R18 Comics › TS Big Brother ~Can’t Resist Futanari Sister

    Synopsis

    ■This is a sequel to the previous work featuring a feminized big brother!

    Don’t worry—you can enjoy this work even without purchasing the previous installment!

    【Work Concept】

    The highlight of this work is watching the feminized big brother, through self-imposed abstinence, thoroughly transform into a girl in both body and mind!

    As abstinence heightens the big brother’s sexual frustration more and more, enjoy watching the TS big brother completely succumb to femininity at the peak of desire.

    【Story】

    The protagonist, TS Big Brother, has a delicate girl’s body but a fully male mind…

    In the previous work, big brother successfully ended up with his futanari stepsister Yui, but the siblings faced a problem…

    They were spending so much on sex they were heading toward bankruptcy!!

    The couple, completely addicted to futanari yuri sex and living a decadent sexual life, began skipping work and started dipping into their savings they’d been collecting for their futures…

    Feeling responsible as the older brother, the protagonist decides to implement a one-month abstinence period!

    Initially reluctant and complaining, the stepsister eventually accepts the situation and agrees to cooperate with abstinence. However, both possess strong sexual appetites… and the stepsister keeps tempting her big brother despite their vow.

    At first, the brother resists properly, but gradually he becomes more aroused and willing… Eventually, he witnesses his stepsister secretly masturbating and, unable to help himself, begins pleasuring himself while watching…

    After the stepsister climaxes and falls asleep, the brother’s member remains fully erect despite the abstinence vow…

    Spotting this, the brother finds himself drawn toward his sleeping stepsister…

    What will become of these two?!

    【Included Scenarios】

    – Pseudo-sex while abstaining and sexually frustrated

    – Peeping at stepsister’s masturbation through a door and mutual masturbation

    – Fellatio performed on big brother’s member while stepsister sleeps

    – Nipple play to heighten sexual arousal to the limit

    – Lovey-dovey sweet sex at a love hotel

    – TS big brother’s crossplay feminization sex

    And more!

    55 pages + pubic hair variations + no-text variations

    Manuscript size: 2894×4093px

    TS Big Brother ~Can't Resist Futanari Sister Despite Chastity Vow~TS Big Brother ~Can't Resist Futanari Sister Despite Chastity Vow~TS Big Brother ~Can't Resist Futanari Sister Despite Chastity Vow~TS Big Brother ~Can't Resist Futanari Sister Despite Chastity Vow~TS Big Brother ~Can't Resist Futanari Sister Despite Chastity Vow~

    Editorial Review

    Feminization meets financial consequence in this sequel that trades shock value for something rarer in the TS/futanari space: genuine character psychology rooted in escalating deprivation. Rather than simply celebrating the protagonist’s body transformation, the work uses a self-imposed chastity vow—triggered by the couple’s spiraling financial crisis—as the narrative engine driving mental feminization. This is a smart structural choice that elevates the work beyond typical gender transformation fare, where physical change alone usually carries the entire thematic weight.

    The core appeal lies in watching psychological erosion compound physical vulnerability. The synopsis explicitly frames abstinence as the catalyst for deeper feminization, meaning frustration becomes the protagonist’s character arc rather than a side effect. This inverts the common progression where feminization happens passively; here, it’s earned through voluntary restraint, making the eventual capitulation feel earned rather than inevitable. The incest-themed stepsibling dynamic with a futanari partner adds narrative friction—the relationship that caused financial ruin now becomes the source of temptation the protagonist must resist, creating genuine dramatic tension rather than pure wish fulfillment.

    The combination of TS/feminization with yuri elements and explicit futanari content remains a niche intersection, and positioning it through a vow-breaking narrative rather than unconditional surrender suggests thoughtful character work beneath the adult content. This differentiates it from the crowded field of straightforward TF erotica where plot exists only to justify the next scene.

    This will resonate most with readers who engage seriously with feminization psychology and appreciate when deprivation narratives explore mental transformation alongside physical change, particularly those comfortable with incest-themed stepsibling dynamics.

    A character-driven approach to a well-worn premise—the abstinence framework genuinely elevates what could’ve been rote gender transformation erotica into something with actual psychological stakes.

    Related Tags:

    futanari  |  yuri  |  gender transformation  |  feminization  |  stepsister

    Tags:feminizationfutanarigender transformationIncest ThemestepsisterTS/Transgenderyuri

    Interested? Get the free trial here ↓

    🛒 Buy on DLsite🔍 Also available on FANZA
    💡 Access blocked? Some DLsite content is region-restricted. Get a Japanese IP with JapanVPN to access all content.
    Sister Sites: Doujin Manga (JA) | Doujin Works (ZH-TW) | Doujin Games (JA) | Doujin Voice (JA) | Doujin Anime (JA) | Doujin CG (JA) | AV Videos (JA) | 🌐 JapanVPN
    🌐 Can't access from overseas? Try JapanVPN for Japanese content access →

    PRAffiliate Disclosure: This site contains affiliate links to DLsite and FANZA. When you make a purchase through these links, we may earn a commission at no additional cost to you.

    Terms & Conditions | Privacy Policy

    © 2026 CAMPs inc.