Since they were truly identical twin sisters, April and May did virtually everything together. Having a special bond, they truly loved one another and helped each other whenever possible. As they grew, they kept the special secrets of youth sacrosanct. In high school, they were careful to keep their hair and makeup as identical as possible, and had a lot of fun fooling people.
The twins had what seemed like a charmed life, raised by loving, well to do parents in a big house. But they weren't snobbish -- they made a lot of friends in high school, and went on to make even more friends in college, applying themselves enough to get adequate, if not spectacular grades. After graduating from college, they rented a house together to not only share expenses, but for the comfortable companionship they found with each other. They loved to watch old movies together and eat popcorn. Raised properly by their attentive parents, they were determined to forge their own way in life, so they got jobs and worked hard.
Being twins and very close emotionally, they were aware of their bodies and were not shy when together. After all, looking at her sister's body was rather like looking at her own body in a mirror. Therefore, they often moved around in their home with little or nothing on. They'd been brought up to not be ashamed of their bodies.
The slight change in their status quo happened when the young ladies had the two whole days of the upcoming weekend to themselves, with little chance of interruption. The event coincided with a time frame when their parents were visiting a sick friend in the next state.
On that fateful Friday, April noticed a slight change in May that she couldn't articulate, and asked, "May, are you OK? Is anything wrong?"
Her sister replied, "Thanks for asking, Sis, but I'm fine. There's nothing wrong at all." But her statement sounded a little off -- and April felt that there was really something brewing.
That evening, May said, "I'm really tired, Sis. I think I'll turn in early. Good night."
She went into her bedroom and closed the door, hearing April say, "I'll head for bed myself, Sis. Sweet dreams." But after she got ready and climbed into her bed, April heard May moving around in her bedroom next door.
Only a little later that night, April was half dozing, but came more awake as she heard a soft knock at her bedroom door. May whispered softly, "April, are you still awake?"
April stated in a normal tone of voice, "Yes, I am, Sis. Come in." She saw that May was wearing a robe and carrying a plastic bag.
"April, I need your help, but you have to keep it a secret! OK? Pinky swear!" After hearing April 'pinky swear' to keep the secret, May softly pleaded, "Follow me into my room, please. Something has been bothering me." Curious, April got up and went with her. She'd thought there was something going on, and was concerned, but what she was to hear was not what she expected at all!
May looked quite embarrassed and started out with, "April, I've always kept your secrets and you've kept mine, but this is really top secret! It's very, very personal to me, but I need to try it, and I need your help. But no one -- repeat, no one -- must find out!"
May dropped her robe and stood there unabashedly nude as she handed April the package she'd been carrying. April looked, and inside it she saw a package of zip ties and a wire cutter. May then turned and put her hands behind her and begged April, "Sis, please take a zip tie and secure my wrists together with it."
April was confused. "Huh? Why? Why should I do that?"
Again May pleaded in a strange tone of voice, "Please just do it! And when it's secure, trim the excess off with the wire cutters."
Still confused but wanting to be helpful, April closed the loop around her sister's wrists and was about to trim off the excess when her sister told her that she needed it tighter. There was a further ratcheting sound, but her sister begged her to make it yet a little tighter.
After another ratcheting sound, May said, "That feels good. Now please trim off the excess." April subconsciously poked the tip of her tongue out of the corner of her mouth in concentration as she carefully applied the wire cutters with a sharp 'click' sound and a free piece of zip tie flew a short distance and plopped onto the floor. The sounds of the zip tie ratcheting closed and the click of trimming it intrigued April. But what came next left her quite shocked!
May walked to the bottom of the bed and positioned herself over one of the knob-shaped finials at the foot of the bed. She then slowly lowered herself onto the finial and April watched with amazement as it easily opened and then disappeared into her sister's pussy. Lifting and lowering herself with her legs, she did this several times. She was so precise in doing this, it was clear to April that May had done this many times before, but obviously not with her wrists restrained behind her like this.