Bisexuals? In my Torchwood?! It's more likely than you think.
The whole intro of Torchwood could in fact be replaced with: Torchwood. Outside the government, beyond the police. Good at walking dramatically in a straight line and almost destroying the world every forthnight. Saving the world from their own fuck-ups, one bisexual encounter at a time. And Torchwood is ready.
I mean. It's not as if anyone watches it for the plot.