Merlin was watching Arthur, watching as he flashed fake smiles at all the nobles he greeted, he couldn't help the small smile that tugged at his lips when Arthur looked at him and smiled, a real smile; it spread across his face and made his eyes glow. He raised his goblet and mouthed 'more wine' Merlin smiled wider and made his way over with the wine jug. As he lent to fill the goblet, the prince whispered in his ear "i love your smile!" his breath tickled Merlin's ear and when he pressed a gentle kiss to the sensitive flesh beneath it his face heated up as a blush broke out over his cheeks.