He'd meant to respond, something adorably snarky about 'only growing on you?' to tease her playfully but he struck silent when she kissed his cheek. Seiya's cheeks turned several shades of pink and he absently laughed to try and ebb the burning down.
"H-hee Young..." He turned his face away, trying to calm and will himself to gain composure. But dammit, she was making it very hard.