[story (massive time skip -- spoilers. maybe.]
Married life was not entirely what Ran and Shinichi were expecting. Not that they were complaining. In the fighting and the struggle to unravel Shinichi's curse and Conan's memory, it was something of an accomplishment to be married at all, and they spent their wedding night keeping an exhausted vigil in the temple, too tense even to shut their eyes, let alone lie down together.
They were neither of them in any condition to protest the assumption that they would continue to live with Mouri -- it made sense, especially since Shinichi and Ran were worn down by the ordeal and anyone could see they'd need quiet and rest. Ran was glad indeed to be back amongst the familiar, and found new charm in doing the housework. Shinichi was there. Shinichi was with her, and she could look up and meet his eyes, return his smile -- Shinichi was there.
It hardly seemed real, possible.
Ran lifted the futons inside from where they'd been drying in the sun; her father's first, laying it in a pile in the living room, hers second, carrying it into her room, and then finally, with a feeling of butterflies and excited nervousness that she had not felt in many months, Shinichi's to place next to hers--
"And what do you think you're doing?"
Ran looked up in some surprise. Her father had been playing shogi with Shinichi, surely he'd noticed her arranging the futons? "I am taking Shinichi's futon inside."
"The innermost room is an honour wasted on him," Mouri said flatly. "He'll sleep where he's always slept."
Ran put down the futon. "Tou-san. You haven't forgotten we are married now. It is no breach of impropriety for Shinichi to stay with me."
"He may stay by you," Mouri said obstinately. "But he will not stay in that room."
"I do not know what your feelings are on having your son by law and by name sleep on the kitchen floor," Shinichi said, not helping the argument any by choosing then to make the move that would win him the game. "But I for one consider it an insult to my wife to suggest she contemplate such a thing."
A compromise was eventually reached. Ran's futon was retrieved from her room and joined Shinichi's and Mouri's in the living room. Mouri resisted any hints and suggestions that as the head of the household it was only right that he take the room with the most honour attached to it; and was extremely merry that evening. It was late indeed when Mouri finally decided that it was time they retired.
Strange luck for a bride, Ran thought as she settled into her futon. Spending the first night of her marriage in a temple and the second with her father! But as Shinichi settled next to her, she found some of her aggravation silenced by a blush. He stretched out an arm, and hesitantly, Ran moved into it, curling up against his side with a happiness she'd thought lost forever. Here! And hers ...
Shinichi smiled fondly at her, fingers caressing her cheek as he leaned in and--
Mouri coughed. Loudly.
Ran started; Shinichi pulled back, sourly.
They were very still a few minutes, listening as Mouri's breathing slowly evened out. Ran lay very still as Shinichi leaned into her, hand resting on her side as he nuzzled her neck. She was too nervous even to breathe almost.
"Shinichi--"
The snore had almost an eruptive quality, coming out of seemingly nowhere with the deafening quality of an explosion. Ran jumped, shoving Shinichi away reflexively. Only after a few moments of silence did she relax. Mouri was merely sleeping. "Shinichi, I'm sorry--"
"Our esteemed father, curse his soul, is a genius," Shinichi said bitterly. "Damn him."
"What do we do?" Ran whispered as another deafening snore racked the room.
"Do? I don't know about you, but I'm going to sleep."
"Shinichi! Mou -- boys!" Ran thumped him in the side, but she had to admit to feeling a little relief. It would be worrying enough facing the duty of a married woman for the first time without worrying about whether or not her father woke. She settled down against Shinichi's side again, letting her arm rest around him, comfortably. He was there. That was enough for now.