Well....this is compliacted.......
This is a complicated area.....but I'll take a stab at it anyway....
When you ask to do something involving any type of restraint, there needs to be a level of trust between the two or more people that will be involved. It can be a very odd request if the person doesn't know you, and what you're all about. So, I must tell you that, if you choose to go through with this. You need to make sure that you completely trust the person, and you have to ask them in a way that you know will not freak them out.
EXAMPLE
I was invited to a slumber party one time (yeah, a slumber party, I was the only guy there, however, I had known all the girls there for a good three years, so it was cool) and the urge to tickle, well, it was just very overwhelming. So, to make a long story short, I instigated a tickle fight, and I was soon on the recieving end.
LATER THAT EVENING.......
After all of the craziness settled down, the girls decided to go out to the local 7-11 for some food. However, I convinced one of my close friends to stay behind with me, and keep me "company."
Now, I had known this girl for a long time, and she could always read me like a book, so when I asked her if she'd tie me up and tickle me, well, it didn't seem like an odd request to her. So.....you guys can figure out what happened next.......hehehehe.......
END OF EXAMPLE
So, if you wanna get someone to tie you up and tickle you, you need to establish trust and understanding. I can't stress how important that is. Because if this person doesn't understand you, then tie and tickling would seem like a weird request. Once again.....just let it flow man.......let the funk flow (I dunno what that means, I heard it in a 70's cop movie) Later people........