So I just bought one of these. http://ecx.images-amazon.com/images/I/51kezTZ%2BzvL._SS400_.jpg Me and my GF have done some light bdsm stuff over the past couple months. Choking, Slapping, Biting, Hair pulling, pushing her face in the pillow. She seems to like being controlled. Time to time I'll sex her up in her sleep and when she wakes up to it and enjoys it. So I bought the restraint system to add to the fun. I was wondering should I just surprise her by tying her down in her sleep. or should I try to incorporate it romantically somehow? any ideas guys?