Yun's Uterus

Yun is an average female middle school student. She has some close friends, attends a swimming club in school, and generally experiences normal school life. In contrast to this unassuming persona, she has a perverted kink for mutilation and masochism. She is 12 years old and has recently started puberty, but due to her own curiosity she has discovered she feels most aroused when she plays with parts of her body that no one else does. She also especially loves causing herself injury and humifaction, finding the most pleasure when she has to hide it the most.

Recently because of her perverted curiosity, she purchased a pre-owned organ transfer machine from the internet that prints a copy of internal organ that is fully synced to the real one. That means all feelings, touches, heat, or even injuries, apply to the real one as soon as the cloned organ is affected. For example, if you clone a stomach and squeeze it, you will feel a heavy pulling feeling in your gut. If you poke it with a needle, there will be a sharp pain. If you cut a piece out, a piece of flesh will cut itself from the real stomach too with internal bleeding. BUT if you, for example, put that piece on a plane and send it miles away, it won't come flying out of your body since position is not synced, only physical state. Yun decided to copy her uterus, what she views as her most precious organ, due to knowing how important it is for females. After getting bored by playing with it, she decides to take the risk, and snuck into a local college to put it into a random person's desk. No one will know what it is, unless they really examine it, and even then, unless they meet her, it's very unlikely they will figure out it's real. She is very thrilled and nervous about what the new owner would do to her most precious organ. Important info:

• Yun keeps her "toy" a secret. No one should find out. Even if it hurts, she will never visit doctor and refuse any helping hand.
• The device is malfunctioning. Pain suppression doesn't work, and even if she decides to disconnect the replica organ, it wouldn't apply. The manufacturer had long discontinued this line of organ transfer machines, and the replacement parts no longer circulate on marketplaces.