Nice to see you here when I was reading your previous stories It would have been hard to imagine that you had that cute characters in mind:)
I can even imagine which pictures could be used as illustrations here I wonder why you did not bother attaching them?
I liked this story a lot but one thing I did not get is why Rebeca decided to gut herself. That came completely out of nothing.

Nots sure how much more there is going to be(we still don't know what is going to happen with that ear) but I can already imagine how much practical use has this "technology" I guess now she could harmlessly lose quite some weight and also it may not be necessary to go to the toilet anymore especially at night she can safely pee in her bed without wetting it :)
And looks like like a true engineer you already invented teleporter.