What is your bondage or self-bondage dream?

I would like a provocative and very playful girl to do some self-bondage in our dungeon. She would let us know beforehand so that we could be her trusted people in case of any problems.
(We do this for free for people who come to our fetish holiday home.)

The provocative, very confident girl would have told me that she was skilled enough to do without our safety services and that, IF I had to intervene, she would give me carte blanche to do whatever I wanted to her.

In this fantasy I have, she gets stuck in her self-bondage and when the time limit for help expires, I go to the dungeon to save her.
Since she provoked me and said that I could do whatever I wanted to her if she found herself in trouble, I'll start by mocking her to play on her humiliation a little. AND THEN, feeling too confident, she'll stick her tongue out at me!

Just for fun, I'll start by completing her self-bondage to make it harder. Then I'll put nipple clamps on her and a magic wand vibrator in her panties and leave her to meditate for an hour.

When I returned, she would ask me to release her and would be less proud, less provocative. AND THEN, the negotiations would begin.

Kiss my bare feet lovingly so that the spanking I plan to give her isn't too harsh. If she refuses, I'll increase the power of the big magic wand vibrator to make her come after putting a big vibrating plug in her bum and leaving her tied up for another hour.

The provocative woman, having aeady enjoyed herself too much with the magic wand and afraid that I would take care of her ass, would eventually give in to my demands.

I'm glad she's letting her guard down and being less provocative. I'll just give her a light spanking, but she's not used to it, so she'll feel it anyway.

After that, I will partially release her so that she can walk and retrieve the keys to the handcuffs, which I will place in the grass in front of our terrace. It will amuse me to see her struggle a bit on her knees and then lying in the grass with her panties soaked.

In real life, I would never do anything sexual that a girl or boy didn't want. But playing a little hard with provocateurs who have taken up this kind of challenge always amuses me because saying ‘do whatever you want to me’ never corresponds to what they really want, and I can guess what that is.

Can't remember if I answered this, so here is another shot.
Three scenarios I really like to try out, but without a partner, it will never ever happen.
1) I am bound, spreadeagled in a bed/contraption/..., naked. My playpartner is allowed to do whatever he or she wants. Putting in a dildo, using electro, a gag, putting me in a new position, adding breathplay... But it needs to be at least uncomfortable. When one hour has passed, he or she or whoever tries to make me cum, if I cum within 15 minutes (again, everything to make me cum is allowed, prostate massager, breath reduction, electro, vibrator...) the pain session goes on for another hour. Repeat until I can't cum anymore. Very curious how long this scenario would last. Only one hour and fifteen minutes? Three, four,...?
2) I am hogtied, not too strict. After 30 minutes the person who bound me comes in and attaches a ring gag, not too small, not too big but with no option for me to spit it out. This is for their safety... Because they would come and  lie in front of me with their intersting parts and I get 10 minutes to make the person cum. When I fail, the hogtie becomes a little stricter (maybe add some rope to the elbows) and I get some more alone time, a little longer now, let's say 35 minutes. The person comes back, I get another 10 minutes to make him or her cum. When I fail, rince and repeat: the hogtie becomes a litlle stricter and a little bit of time is added to the alone time. When I can make my partner cum, it ends the scenario an I get to enjoy my sore muscles.
3) I'm in latex and segufix on a bed. It's all fun and games, I'm open to whatever my partner wants to do with me. But there is a time I'll want to get out. Then my partner rolls 3 d20's (or more, depending on what we agreed). That's the extra time I need to spend there in hours. Of course I need to pee, but my partners puts a catheter in. I won't have to poo because I had to take enemas until I was completely clean. Of course I'll get hungry and thirsty but that's why you insert(ed) a gastro nasal tube. My partner is having all the fun. And, secretely, me too.