Impsec's Eyes by Joy Andover ("Simon Illyan has a chip in his brain that gives him an infallible memory. This can be a blessing or a curse. He's not sure which it is this time, when he discovers that his boss--Prime Minister Count Aral Vorkosigan--is putting himself in a compromising position with a young aide.") (Vorkosigan universe) (1)
SLASH indicates an intimate relationship between two men.