[Nobotchi Seisakusho (Nagumo Ryuuichi)] Oyama Mahiro no Mesuochi Haramase Shussan Jikken! | The Case of Oyama Mahiro's Fall, Pregnancy and Childbirth! (Onii-chan wa Oshimai!) [English] {Doujins.com} [Digital]

[ノボッチ製作所 (南雲龍一)] 緒山まひろのメス堕ち孕ませ出産実験! (お兄ちゃんはおしまい!) [英訳] [DL版]

Parodies onii-chan wa oshimai 145K
Characters mahiro oyama 145K
Tags pregnant 6K glasses 8K nakadashi 14K lab coat 15K lolicon 19K filming 27K dilf 29K sole female 36K sole male 36K gender change 138K vaginal birth 143K
Artists nagumo ryuichi 144K
Groups nobotchi seisakusho 144K
Languages english 12K translated 17K
Categories doujinshi 33K
24 pages
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Story & Details

[Nobotchi Seisakusho (Nagumo Ryuuichi)] Oyama Mahiro no Mesuochi Haramase Shussan Jikken! | The Case of Oyama Mahiro's Fall, Pregnancy and Childbirth! (Onii-chan wa Oshimai!) [English] {Doujins.com} [Digital] is a doujinshi featuring 24 pages of illustrated manga content.

Created by nagumo ryuichi, this work was uploaded on February 21, 2026.