ORAL SEX FUNDAMENTALS EXPLAINED

oral sex Fundamentals Explained

Sperm Competitiveness has induced the human penis to evolve in length and measurement for sperm retention and displacement.[37] To obtain this, the penis need to be of enough size to succeed in any rival sperm also to maximally fill the vagina.[37] So as to make sure that the female retains the male's sperm, the adaptations in duration in the human

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