I have my own opinions on this but I would like to hear others. First of all does sex change things for you personally? Lets say you and a friend or a coworker or even a stranger have sex once casually. Do you believe this changes things between you and them forever? For example, if you slept with a coworker once and had to continue working with them do you believe it would be awkward or would you just carry on as normal? Considering it is a natural and normal process for humans to take part in why does it often change things completely? Even taking all promise of future commitment out of the equation and when its clear that it was a one time thing. Is it just that sex is such an intimate human interaction that we can never go back to the way things were? Has something like this ever happened to you and how did it change things? Did you just imagine them naked and all the unspeakable acts they had done with you the night before or were you both able to continue as you had been before just fine? The human dynamic of this is fascinating