You know, all those tubes and oozing liquids, it’s hard to know where my cerebrospinal fluid ends up.

During intercourse the woman absorbs the literal cerebral fluid and essence of the man, the fluid that contains the nutrients the man chooses to feed his brain; so don’t ever “it’s just sex, im free and liberated” me.
General Jack D. Ripper would be so proud. People who understand biology, not so much.