Well seems like Jen was born with unusual condition. Julie happens to be Jennifer's penis it's weird but that's how it is for her now.
The course is really weird for someone that have a walking talking penis, especially if you're the only one in the world to have this condition.
To everyone else she was born this way but to her it's a new thing this is really freaking out. Well the doctors couldn't explain it either she just happens to be a regular teenage girl with a twin that happens to a male reproductive organ.
Here is the facts:
1. The doctors called her condition conjoined penis syndrome.
2. Whenever Julie is aroused then Jen is aroused. Julie being a penis gets very horny easily so Jen is constantly horny herself.
3. The umbilical cord that attaches the two of them together can grow and retract infinitely and that last summer Julie went on a solo trip by yourself to visit her aunt and uncle a few states away wild Jennifer stayed at home the whole time the cord was attached. The cord itself can never be damaged or cut being several states away the umbilical cord would suffer being trampled on and scraped and such but didn't get damaged at all.
4. Jennifer can perform any sexual act she wants with her penis Julie.
5. Since Julie is a part of Jennifer's Body she feels everything from her. However, she is not in control of Julie at all Julie can do whatever she wants and has her own free will.
6. Jennifer may have a twin for a penis but, but her own body also has a vagina. Ironically she is unable to perform sexual acts with her vagina in public.