Oh my smoky moses I have died and gone to heaven! I loved the 5/Turlough one (not just cos of the obvious, but because the characterisation of Turlough was just so entirely perfect), and then ran away going 'eek' at the next part because Four/Turlough means Four being slashy and that makes my brain go sping. BUT OMG EIGHT/TURLOUGH!!!

Eight calls him 'puppy'. And Turlough calls him 'pretty'. And there is cravat porn and angst in all directions and golly.

Time and Again 3 for future reference - I assume that's the one you were on about.