Merlin and a Mage?
About the only thing I can remember is that a delegation comes to Camelot and they have Mages with them. One talks to Merlin on a hill top and they kiss. After a feast where they keep looking at each other, they go back to Merlin's room and do the dirty. I think the Mage trys to talk Merlin into leaving with them...but I can't remember the rest of the story. Does it sound familiar?