've only been tied during one week's session of tickling...and the thing that hurt was when he used handcuffs..although he placed washcloths in between the cuffs, it still hurt me.. my wrists are so small he had to tighten them, which hurt no matter how much it was clothed if that makes sense lol...and one time my arms were pulled straight up above my head, and it hurt afterwards...hurt my shoulders for a bit.. i think it all depends on how you are tied and what is used...i was only gagged briefly with his socks eww hehe..and that didn't hurt..
btw you are adorable...