The condo was owned by his brother. Although, technically, it was now his brother and her sister, since the two had gotten married. The bride and groom were on their honeymoon, temporarily leaving the condo in the care of their respective younger siblings, who had both been living with them.
The bride and groom had been engaged for several years, while living in the condo, and they both gave their younger siblings that place to stay while they finished high school, and simply continued after, because it was beneficial to all parties involved. In this specific instance, the bride and groom got free house sitters out the the deal.
The youngers were quite happy to serve in this capacity, for numerous reasons, but both did have a secret desire to be alone with the other. They did find each other attractive, but they both were hesitant to try to pursue anything, because they thought it might make things extremely awkward for their older siblings.
The two had kept their desires from each other, but still acted in ways that, to anyone paying very close attention, betrayed those desires. Fortunately for them, no one was paying attention that closely, but they both suspected each other's feelings.
To any outside observer, they were just good friends. Behind closed doors, they were masturbating to thoughts of each other.
Neither were particularly extraordinary people. Pretty average, in various respects. Moderate might be a better word.
He was of moderate build. He had moderate interests.
She had moderately sized breasts and ass, and was only moderately tomboyish. She had a moderately above average interest in trying new things: usually physically challenging things, but she was not a thrill seeker. She just would wonder what something was like, and then want to try it. Usually, once was enough.
It was the night after their older siblings had left, and both felt excited and anxious, but tried not to let the other see it. It was one of those stereotypical situations where, if either of them had the nerve to declare their feelings, then they could both proceed to get what they want.
They were both sitting on the sofa, watching a indie movie that featured a female character, held captive in a basement, and the two male captors were raping and abusing her.
He was uncomfortable watching this with her, because he wasn't sure how she felt about it, but she was staring intently at everything that played out in front of her.
The last thing he expected to hear from her was, "I want to try that."
"What," he asked, partly shocked, but also a little uncertain that he had heard her correctly.
She suddenly looked to him, a little shocked that she had said it out loud. Her thoughts flew a mile a minute, realizing that she must have, on some level, wanted him to know. Her heart pounded at the choice before her: Play it off as some kind of error, or pull the trigger.
"I want to try that," she repeated, staring him directly in the eye.
He was completely at a loss for words. That any aspect of what they just watched was somehow desirable to her was unbelievable enough, but he wasn't sure what specifically she meant. Did she want to kidnap someone? Did she want to be the captive?
"What," was all that he could manage to say.
She paused the movie and looked back at him, deciding to stop thinking about it, and just go with it. Let the chips fall where they may.
"I want to know what it's like to be captive and used like that."
His mind was a whirlwind of images and possible explanations.
"I don't understand. Why...? How...?"
She considered giving him a detailed explanation of why, but decided that would take too long. The how would take more thought on her part, so she decided to go with a short, sweet, direct version.
"I want you to chain me in my room and...", she didn't know how to finish that sentence appropriately, so she lunged toward him, holding his face between her hands, and landed a kiss on his lips for about ten seconds.
That's about how long it took for his brain to catch up. She was backing off just as his hands were rising to her, and her sudden departure stopped him. He opened his eyes to hers.
"I know we both...." Something would not let her finish the sentence. If she openly acknowledged their mutual feeling, then it would hinder the realism. It would turn this into little more than a fun game.
"Listen," she said. "I want YOU to hold me captive in my room, and I want YOU to... do things. I want you to be my captor. I want you to do what you would do if you had a captive to... use."
"But I wouldn't ever want that."
"Come on," she said softly but flatly, trying not to sound too excited or frustrated. She was going to have to ruffle the edges of the illusion a little bit, after all. She whispered as a compromise. "I'm not asking you to hurt me. I know you won't. But I know you must have had some kind of slave fantasy before. I'm giving you the chance."
She was right. He has had his share of slave fantasies, but none of her. None of any actual person, because he would never treat anyone like that, but she would technically be a willing participant, and he would stop whenever she wanted him to, so....
"O... Okay," he replied. 'What am I doing,' he questioned himself. "How do you want to do this?"
She lowered her gaze in a moment of thought, then looked back up.
"Go get your bike lock and meet me in my room." She stood up and left him on the sofa.
He had still not fully come to his senses, which left him on a sort of autopilot of simply doing whatever she instructed. It was all too bizarre, but he didn't want to just refuse her.
He eventually got up and went to his own room to retrieve the plastic-coated locking cable from his bicycle, then met her in her room.
She had stripped the covers from her bed and shoved it as far as she could toward the wall nearest the hallway, and moved several other things away from a large, antique wardrobe in the corner. When he had entered, she took the cable from him and proceeded to loop it around the nearest leg of the wardrobe, and then lock it.
"You have the key?"
"Yeah," he answered, showing it to her.
"Okay. Keep it someplace safe." She stepped to a dresser and picked up a pair of handcuffs and their keys, and then handed both to him.
The handcuffs where from another time when she wanted to try something. She wanted to know what being cuffed was really like, and she wanted to see if she could pick them (she couldn't), so she bought herself a pair.
He understood her giving him the keys, but "Why are you giving me these," he asked, raising the cuffs up slightly.
"I want you to cuff me. You're the captor, here. Cuff me to the bike cable."
"Are you sure about this," he hesitated.
"Yeah. Do it," she insisted, holding her wrists out to him.
"If you change your mind, I'm unlocking you. I hope you realize that." He put one cuff on her and then led her to the foot of the wardrobe to feed the other cuff through the large loop and then around her other wrist.