most people know twins have a telepathic connection (might not be very strong as they get older) there connection is stronger because they shared the womb. if you think about it there to young to understand what it is they can do and drift apart as they get older finding new friends and hobbies. so (do we all have that ability) probably just got to find it
what would happen if you had both twins in a room and hypnotised one how would that effect other if at all ?
im sure you can find intresting stories about twins and there connection on net.