Like 666MIB, this is my first time answering one of these. Obviously it is just a little bit fantastical, because in real life this would be weird at best and illegal at worst.
For you, it would have to begin when you are asleep. Two reasons: 1. It means you are wearing loose, silk pyjamas which will be important later on. 2. When you wake up, you will think you have been kidnapped - just the way you like it
I would handcuff you, preferably in some nice fluffy ones so it is softer and there is less chance of you waking up, and I would also tie your ankles with some soft but firm cord. And "no bondage is complete without a gag", so duct tape goes over your mouth. Then load you into the boot of a car and whisk you away. (Ace! I am able to drive in this thing!) I would take you to a secret lair, and put you on a bed where the headboard is bars. VERY useful for handcuffing you

Ideally, by the time you wake up, you will have thin but strong chains and ropes wrapped all around you and the bed, tying you securely. In particular, there would be a figure of 8 wrapped around your chest, and a slightly thick, coarse rope running round your crotch and secured to your arms and the bed, so that wherever you move (although you can't squirm THAT much), you will be pulling on it. Because your clothing is so thin, you can really feel it through the PJs (told you there was a reason!) You would also be blindfolded, so you don't know who your captor is.
You wake up, and it doesn't take you long to realise your predicament. That is when you hear an electronically warped voice telling you that you have been kidnapped, and that you better be worth money or there will be "consequences". It will be explained to you that I'm the only one that can possibly hear you so there is no point screaming even IF the gag is removed. Now, I COULD go into what would happen then, but this is never going to happen, so no point. You only asked how I'd tie you, not what I'd do
I'll let you know something, though. Remember I told you there were worse things than bad grammar? Well, when the blindfold came off, up on the ceiling there would be an enlarged passage of writing - bad grammar full of it will be! You will probably be told you need to understand it within a time limit to escape "punishment", and you would certainly be allowed to compare how bad seeing the grammar was to a certain other punishment...
Hmmm, I think that was quite inventive for my first time

And it didn't have to be too intimate, revealing, sick, scary, or illegal (yeah, obviously someone you know would be in on this just to be safe!), or cross any lines whatsoever. (I'm not suggesting anyone else does this, btw). Nothing you couldn't handle. In fact, given I'm a sub, you'd very likely enjoy it more than me!
