Kako perverzne so ženske

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Uporabnik alkoholik pravi:
videa ni več

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Uporabnik mistique pravi:
Podprle so jih pa veganke

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Uporabnik alkoholik pravi:
videa ni več

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baje se ob začetku spolnega odnosa v vagino najprej sprostijo kemikalije, ki ubijejo semenčica morebitnih prejšnjih partnerjev

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Uporabnik kravakonj pravi:
...baje se ob začetku spolnega odnosa v vagino najprej sprostijo kemikalije, ki ubijejo semenčica morebitnih prejšnjih partnerjev , nato semenčica, nazadnje pa kemikalije, ki ščitijo semenčica pred morebitnim partnerjem, ki bo prišel 'za tabo '.

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Uporabnik Matey pravi:
Ammm....ali ni tole rahlo kontradiktorno oz. samo sebi nasprotujoče? V čem je pol to trik?

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One evolutionary response to sperm competition is the variety in penis morphology of many species.[20] For example, the shape of the human penis has been selected through sperm competition.[21] The human penis has been selected to displace seminal fluids that were implanted within the female reproductive tract by a rival male.[21] The thrusting action which occurs during sexual intercourse manually removes seminal fluid out of the cervix area from a previous mating.[21]

Evolution to increase their ejaculate size in the presence of sperm competition has a consequence on testis size. Large testes can produce more sperm required for larger ejaculates, and can be found across the animal kingdom when sperm competition occurs [22] Males with larger testes have been documented to achieve higher reproductive success rates than males with smaller testes in male yellow pine chipmunks.[22] Male yellow pine chipmunks that had large testes fathered more offspring than males with smaller testes.[22]

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Female factors can influence the result of sperm competition through a process known as "sperm choice".[25] Proteins present in the female reproductive tract or on the surface of the ovum may influence which sperm succeeds in fertilizing the egg.[25] During sperm choice females are able to discriminate and differentially use the sperm from different males. One instance where this is known to occur is inbreeding; females will preferentially use the sperm from a more distantly related male than a close relative

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Uporabnik jest5 pravi:
[Tale je res čisto baje na ravni gostilniške debate

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Uporabnik jest5 pravi:P.S. Tudi v tej tekočini na začetku odnosa so semenčice. Nekako to ne gre skupaj s kemikalijami z ubijanje.

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