The term “fuck you” is not an insult for nothing, men know why – it’s the worst thing you can do to a human being. It is in itself an extremely physically invasive act, very often painful, generally at the beginning before the pain may be cut off by the genital arousal; causes all sorts of tears, bruises, swelling, discomfort, STDs, vaginal infections, urinary infections, genital warts, HIV and death. Not to forget the additional sado-gynecological interventions/ costs of PIV-maintenance, and all the secondary physical mutiliation and financial costs that go with our duty to make ourselves look decorative for male sexual consumption – such as hair removal, make-up, starvation or forced feeding, torturous limb deforming or cutting up, etc.
The fact intercourse causes so many infections and tears and warts attests to the unnaturalness of intercourse, that it’s not meant to be. The vagina’s primary function isn’t to be penetrated by a penis but to eject a baby for birth. They are two muscle tissues / sphincters pressed against each other to help the baby be pushed out. Penetration of the penis into the vagina is completely unnecessary for conception.