Forgot to say, what gave me the idea of Sky as his girlfriend was this picture from 2012, which establishes that she's physically about the same age as Jason (it's actually a bit more complicated than that because she is an artificial being) and at least in this picture is wearing a shirt with an eerily familiar letter:
![[Linked Image]](http://images6.fanpop.com/image/photos/32800000/Sky-Smith-Sinead-Michael-3-no1drwhofan-32833106-453-380.jpg)
I'm guessing her hair is like that for electrical reasons, I can't actually remember that scene but it looks like she's been charged up to a few thousand volts by a Van de Graaf generator.
