I did this a year ago or so.
http://www.youtube.com/watch?v=g4Hu-EidErY I uploaded the full version on other video sharing sites cause of YTs gay strict policy on tie up stuff but I cant remember where. I did this for a contest and thats about it. With that girl I made one other mini movie with her tied to a chair but thats not on the comp. Ive tied up my sister a few times and filmed her escaping.