Oh, it's a 'ship all right, it's just not physically sexual. There's a who_secrets secret which, while not mine, might as well be:



Incidentally, I trawled through the Seventh Doctor archive on the Teaspoon looking for examples for you, from which I determined a) that there is no truly bad Ace/Hex there and b) that there is some truly unnerving Seven kink out there, with bonus points going to the Kangbang.