You have already done the work of letting her know, in a subtle, sexy way, that she would look great tied up and tied down and how much it would turn you on to see her that way and be the one that does it to her for the first time. You have already assured her that you would be so turned on you would so make it worth her while. She has agreed to do this for you, but you hear the hesitation in her voice. Knowing that it will be much more fun for you if she is almost as engaged at the idea of her immobile, tormented and tortured as you are, you must have a plan to get her in the mood.
Step One: Ask her to spend the night with you at a hotel. Neutral ground. Tell her to pack her idea of sexy lingerie and high heels, in black if possible. If you actually get as far as the hotel room and see her dressed in her idea of sexy clothes and ready for bondage you are not really going to care what her idea of sexy is. Don't be picky yet. Save that for the next go around.
Step Two: Tell her what time you will pick her up and be on time when you show up at her house. When you pick her up, be very patient and attentive. She is very nervous and is trying to not let you know that. When she is ready to go, grab her face in both of your hands and give her the biggest tongue kiss of her life, look straight in her eyes and say, " I am so happy you are doing this for me."
Step Three: Take her to a bar immediately for one or two cocktails to loosen her up. Say something like, "It was so hot working outside today. I really feel like a cold beer." Or, "Do you want to stop off for a drink before we go shopping?" She is going to be nervous and be receptive to one depending on what kind of woman you are hoping to torture.
While at the bar, focus only on her and be a total gentleman. Your cum filled balls depend on it! Flirt, kiss her, and give her the 'I want to fuck you' eyes. After one or two cocktails, lean in close to her and grab her hair from the underneath at the back of her head, and kiss her deep and say something like "Are you ready to go Beautiful?" Or if she is basically a dirty girl, "You're making my cock so fucking hard. Are you ready to go?"
If she leaves the bar with you at that point, you probably have it made. Now all you have to do is play your last mood-setting card and she will be begging for your sick mind to take her to places she has never been.
Step Four: Drive to the local farm supply store. Watch the confusion in her face as your park your vehicle in the parking lot. Say something like, "We need to pick up a few things." Face her directly and look at her with a sexy, mysterious look.
Take her inside and let the games begin! Grab a cart and push it around confidently. Start her out small by going to the Home aisle and picking out a few candles. Make sure to let her smell them all like you are interested in her opinion of the scent even though you are looking more at the color and imagining dripping the hot, molten wax on her abused tits and pussy later and what is going to look good on the pics you hope she approves of you taking. This is where compromise comes in. Let her have her way if it is going to suit your plans, otherwise try to sway her choice by saying how much you like the scent of the candle you really want by playing to like the scent soooooo much. She is eager to please and you will win.
Next take her and the cart to the automotive aisle. Show her the rack of rolled chains on the wall. Say, "Pick one out." Watch her blush and walk up to them very curious and touch each one.