Based on sallychanscraps' Demon Bride AU on tumblr.
Shinjiro was starting to feel apprehensive about his arranged marriage.
He knew that he loved Ashi, but she was always so stoic. She was polite and courteous to him enough, but in all the time he had known her, she never showed any kind of enthusiasm about their future together.
He just couldn't tell how she really felt and couldn't help wondering if she even liked him. He'd only ever seen her smile once and that was back when they were children.
Upon her next visit, he resolved to try to get her to show some kind of emotion about their future; even if it was only a small amount.
As their fathers spoke in private, Shinjiro had found Ashi looking out from a balcony. He had asked to view with her. She politely told him yes, still remaining as stoic ask she had in the past years.
"Ashi? May I… ask you something?" he questioned after a moment.
"You may," she replied calmly.
He asked her various things about the wedding ceremony. While she said nothing that would imply that she had any negative feelings about it, she still remained stoic. He wondered if he was asking the right questions.
"Well… what about our first kiss?" he asked. "Wouldn't that be exciting?"
Ashi simply turned her head slightly to face him and raised an eyebrow at his question.
He gained a light blush as he laughed nervously. "B-because! Who knows what kissing will feel like?"
Ashi was silent and still for a moment. She then moved so that the two of them were face to face. She then placed her hands on his waist and stretched herself up slightly, so she was closer to his height. She pulled him close so that they were pressed against each other. She then placed her lips gently against his.
Shinjiro's eyes grew wide and his blush grew across his face as she continued to hold him, showing no sign of letting go. He felt his heart pounding louder and the heat rising higher the longer it lasted. He felt lost in this moment, like nothing else in the world mattered except for her presence here with him.
It wasn't until she pulled away that he realized how light headed he had become and nearly had his legs give out. Ashi seemed to be aware of this and moved her hands to his shoulders as if to steady him.
"That is what it will feel like," she calmly told him.