The only time I was actually afraid in session was with jessy Kang in NYC, I was tied to the table, deepthroating her strapon and couldn't breathe for a very short time. She pulled out and laughed, it was a little scary and a little exciting. I think to feel comfortably scared (if there is such a thing) you have to have a longer term relationship with your domme, I do not have this yet.
_________________________
Twitter: @sissybuttslave
http://xhamster.com/user/sissybuttslave
https://www.tumblr.com/blog/sissybuttslave
Fetlife: sissybuttslave