Last Updated:2025/11/22

The presence of pre-ejaculate can sometimes introduce sperm into the partner's reproductive tract.

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The presence of pre-ejaculate can sometimes introduce sperm into the partner's reproductive tract.

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射精前の透明で無色の粘性のある分泌液が存在すると、パートナーの生殖器に精子が入り込むことがある。

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