Just relax man. Penis shape is perfect to pump out previous male sperm out of vagina.
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But to be honest its just skin and she washes it. Its not like you touched poo with your hand and smell stayed for the rest of your life. In fact all cells in body changes several times during life. So its all in your head. Maybe sex therapist can help. But really you have to get over it. Try to talk with her about it.
Last edited by pcmaster; 24-12-16 at 11:26 PM.
Doubt kills more dreams than failure ever will