Humbling The Princess - Tied Down

Everyone has that friend who would bring the world for them, and never make a move unless invited to make one. A friend that you feel safe with. A friend that if you even imagine being with, you know they would care for you more than anything in the world, but once a line is crossed, things change drastically and when you are subjected to things you never imagined, would you fall in love or would you develop hatred ? Would you fight it or give in ? Would you start liking things that you never believed you could or would you be grossed out by everything ? Would you bear it just to experience it all ? Maybe you will not even have a choice. An unusual friends to lovers story where someone get tied down and the princess gets humbled.