There are a lot of things in BDSM that could or may be illegal in your area. Consequently, it can be ruled in a court of law that what the two of you are doing or practicing may be illegal and thus you cannot give your consent willingly or otherwise, however stated. As well, by providing a written contract, you are in fact creating and perhaps publicizing a document, that could prove legally harmful to either or both of you if it winds up in the wrong hands or is discovered. Have a care before you move from the fantasy into the reality of the lifestyle. Many things that were common knowledge/sense have been forgotten or lost it would seem by the TNG'rs. My thoughts, not yours, JMHO.