Character: Merlin (you can probably tell by now that he's my favorite)
Relationship: maybe Merlin and Arthur? Pretty gen actually.
Pink
Blushes and Compliments and Humility
Merlin's embarrassment was amusing, but confounding; it was predictable in its progression (always pink ears first), but not its cause. It was rare, Merlin's blush: Merlin seemed obtusely unembarrassed most of the time by his fatherless upbringing in a small farming village, by his status as a clumsy idiotic servant, by his tendency to be an absolute girl about everything and even cry. But every time anyone paid him the slightest compliment, Merlin's ears pinked.
Arthur had never blushed at a compliment, even the rare ones from his father. But then, he had never been a humble man.
Merlin was.