Fics like Growth and Discovery

When Momiji and Mahiro want to test the myth that rubbing your chest makes it grow, things quickly devolve into a lewder and lewder situation that leaves them both discovering things about themselves.

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  1. It’s Okay to Like You, Isn’t it? by LadyRedHeart (お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga), お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Anime))
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  6. Endurance Training by Lilith_Blanchimont (お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga))
  7. Cardcaptor Sakura x Onimai: Sakura and The Gyaru Babysitter by CCDPA (Cardcaptor Sakura (Anime & Manga), お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga))
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  9. Little Miracles by arielhaymarket (お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga), お兄ちゃんはおしまい！| Onii-chan is done for!)
  10. Oyama Mahiro Meets Another Test Subject by mayama_wawah (お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga), お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Anime))
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  14. Onimai! Highschool era by FalseMimicry (お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga), お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Anime), more)
  15. Awkward Awakening by ZXSpectrum (お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga))
  16. Mahiro x Kaede by Kikotama (お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga))
  17. Scrapped Gothdresser Stories by Gothdresser (Pocket Monsters | Pokemon - All Media Types, Girls und Panzer, more)
  18. One of Those Days by arielhaymarket (お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga))
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  20. OniMai: Starting Over in a Broken Body by Not_Slumz (お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga), お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Anime))