I'm not sure that everyone can, but many people can.
Sex starts in the "lizard brain;" it's the higher reasoning in the cerebral cortex that overcomplicates it.
So I guess people who just want to be "fuck buddies" are just lizards after all.
If the freedom of speech is taken away
then dumb and silent we may be led,
like sheep to the slaughter. George Washington(1732-1799) First President of the USA.