Spoilers/Warnings: Not really any, you'll only be able to tell if you've seen both Doctor Who/ Torchwood episodes. I would say which ones, but that would give away the plot.
Setting: Before season 5 (after season 4) for Doctor Who, sometime after Tosh and Owen's death (any more specific and I'll give the plot away).
A/N: This is the first time I have written in second person, and despite having a beta (the amazing tempusdominus10 ), it probably isn't one of my best. And, yes, there is jack/ianto, even though it's only hinted at.
It flowed through your veins and penetrated your soul.