Loss of control

Assistant - Boss. More complicated than that. Add strong will and clash of minds that leads to head butting and chemistry where sparks fly.
You get an explosive one night.
Not one night stand, just one night where all control is lost and their desire might seem sated. It should have never happen. But it did.
Bliss, euphoria, ecstasy, passion and delight of their lovemaking tangled with that dreadful feeling of fear, pain, loss and longing, where reason was nonexistent, common sense fled and what left was a gut wrenching feeling that it was no longer just a good sex, that it started to look more and more like...