in reply to jeff and specialis......ofcourse urine is sterile,but while it passes the urinary duct,it's contaminated by natural bacteries which live in urinary duct,so when it gets out of body it is not sterile any more!.................. |
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Try reading The Ultimate Guide to Anal Sex for Women by Tristan Taormino. She goes in depth about the whole subject and it really informed on it. |
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