No, not at all! And I guess I've been misunderstanding chan as I thought it implied underage, not necessarily one underaged and one adult. I just looked on wikipedia and in a slash section, simply underage seems to be the definition for chan, but stuff like this doesn't have any hard and fast definitions, which is part of what makes it so interesting!

So you do think of Jack/Ianto as slash and not simply canonical fic? Did I understand you properly?