I actually smiled when I saw the thread... certainly a bit of reminiscing! Intersting to see a lot of posts saying tendencies started from when they were young. For myself, I can remember when I was in the early teens, I liked to roll up in the quilt - so its a tight coocoon - then have a bit of a struggle
Certainly don't remember it being sexual (well, not when I was young anyway).

Then I came across the internet during my uni days... and along with it anime (or hentai). Strangely enough, I thought those cute cartoon characters being tied up a turn on (even those crazy tentacles!) Bless the Japanese for their wicked imagination.

Good to see there's an expert on psycology on the forum (thanks for your post SubmissiveDoll) - so its genetics over environment huh? Hmmm, I wonder if it always manifests itself sexually/physically... I for one have been much more turned on by the fantasizing and imagining, as opposed to the reality, which unfortunately has been quite uncomfortable / embarrasing the very few times I've dared to try. Ah, well, a forbidden fruit it remains then - maybe which is why it looks ever so tasty. Hats off to those who have tasted and found it to their liking.