The channel throughout the cervix is lined with cells and glands that secrete mucus. This mucus is thick and impenetrable to sperm until finally just ahead of ovulation. Certainly via the ’70s you didn’t even should say it: Isaac Hayes could call a sexual intercourse-equipment detective a “negative mother—” https://xvideos54435.angelinsblog.com/30816269/rumored-buzz-on-mother-fucker