I'm in a FWB situation and I trust him fully and feel safe with him. I've been in abusive relationships before and sex has always been about faking it and getting it over as quickly as possible. With my FWB I don't fake it and he has previously brought me to climax on a couple of occasions. I really want to explore what I enjoy and he's eager to help me with this and I'm comfortable with him taking full control but we need a safe word in case it becomes to much for me. What do you even use as a safe word?