She has ordered a special costume for a party. It is of foreign origin so she misses some of the instructions that are written in bad translated English. The costume has a few key features: 1) there is an inbuilt vibrator in it that locks in place like a chastity belt. The protagonist does not realize that when the belt clicks in place. It first very snugly and is not unpleasant. It is not running initially. 2) There are snugly fitting gloves to it with some sensors and rings at the wrists. If she places her wrist behind her back the wrist locks in place to her belt there. She whill then wonder what happened and try to get her wrist free with her other hand, which only means that the other wrist will be locked there too, binding her wrists behind her back. When that happens, two things happen simultaneously. First, the vibrator starts, with a sudden jolt, then calms down somewhat and begins the preprogrammed program. The program is designed to slowly build her to an edge, then calm down, then start up again, a little more intensely, again edging her. The program does this twice and for the third time, brings her to a massive orgasm. The second thing that happens when her wrists click locked to her belt is that her top falls of, exposing her boobs. All this can happen whether she is alone, trying out the costume, or if she is with someone, or out in the public, on a way to the party or at the party, or leaving for home with someone she has met at the party or already at home, at her place or at his place. The other elements of the story dictate when the predicament begins. Mind you, she has agreed to all this when ordering the product, giving her consent by ticking the box. She looked for a sexy outfit, but just got something more than what she expexted.