I have no doubt that my interest in bondage is born-in. I can trace it back to my earliest childhood, at least to Kindergarten. I used to tie up barby-dolls of my sister. I would still do this if shame would not prevent me. The books of Karl May were a great source of inspiration for me, because of the many tying-up scenes. When I was 12, I started tying myself with ropes, when my parents and sister were out of the house. During my whole highschool period, I did all kind of selfbondage experiments. I tied myself to chairs, to my bed, tried to suspend myself to tubes in the cellar, etc. I never got stuck or discovered, but I did have some near escapes.
When I started living alone, at 18, my selfbondage techniques improved drastically. At the age of 19, I could do the BPBH (with nylon ropes, chains appeared later), and the rack. (in a non-strict fashion) I sometimes had faint thoughts about strict self-bondage, but I did seriously work them out, because I thought it would be too dangerous.
When I was 23, I gradually started using chains and self-made handcuffs from welding wire, together with padlocks. One year later, at 24, I started experimenting with ways of keeping the keys out of my reach for a certain time period. After having tried some unsafe methods, I started using icecubs and soldering irons. My first strict selfbondage method consisted of tying myself to my bed. A couple of months after that, I could to the basic position with chains, which is much simpler and much safer. Two years later, at 26, I invented the Basic Position with Body Harness.
Since then, not terribly much has changed. Over the years, I made a couple of small changes in the scanario's, mainly to improve their safety. When I was 33, I did for the first time a strict suspension, but I do not do that very often, it is too complicated.
I do not fully understand what attracts me in selfbondage. I do like the feeling of being naked and tied up, but I would not like to be tied up by somebody else. On the contrary: I do like to tie up others.
For the rest, I am not terribly interested in more extreme forms of sado-masochism. I do not really know where my border would be, because I do not have sufficient experience in playing with others.