〇〇君の最大長さ測定 (maximum length measurement) (Pixiv Fanbox)

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〇〇君は最近、ちんちんの大きさが抑えきれないほど大きくなってセックスする時は興奮を鎮めてサイズを小さくしています。 最大に興奮したときの長さは100cmを超えるそうです...

Recently, 〇〇-kun's size has grown uncontrollably. So, he calms down his excitement to reduce his size when having sex. When he reaches his maximum excitement, the length becomes over 100cm...