Tumblr Prompt: How about some FutureLock? Sherlock regaling his and Molly's grandchildren on how they finally got together as a couple. That would be so super! Thank you!

Molly straightened her shoulders and readjusted the grip on her carryon. Her lip trembled horribly and tears ran down her cheeks as the queue to board moved forward slightly. Embarrassed, she brushed the tears away roughly.

It had finally come. The last straw. The day she gave up on Sherlock Holmes.

Everything had come crashing down after Janine and Magnussen, then Faux-Moriarty. And her heart could take no more. He never treated her as anything more than an asset. And she couldn't watch him get killed by his recklessness. So, she was taking her heart and moving on. To America, as a matter of fact. Sherlock would move on and find another pathologist, probably one who wasn't so pathetically heartsick over him.

Suddenly, a familiar baritone broke through the clattering airport sounds.

'Molly! Molly Hooper!'

She stiffened at the shout. Turning, she peeked around the people behind her to see a familiar head of black curls bounding through the terminal. Her eyes widened in shock as Sherlock pushed past travelers, narrowing in on her.

She stepped out of line with a horrified, yet confused expression. 'Sherlock? What are you doing here?'

'You can't,' he panted as he ran up to her. 'You can't go.'

Molly rolled her eyes. 'I can. And I am.' She turned away, flicking her ponytail over her shoulder.

Sherlock reached out and whirled her back, his arms locking around her waist. Her carryon clattered to the floor beside them as she struggled against his hold.

'What are you doing? Let me go!'

By now, they'd gathered a small crowd. All the words he'd wanted to say failed him, so he did the one thing he'd been wanting to do for three years. He kissed her.

The moment his lips touched hers, Molly melted against him, her anger dissipating. She sighed into his mouth as he masterfully deepened the kiss. Both were ignorant of the cheers and mutterings around them.

Pulling away with a dazed smile, Molly grinned up at him. He smirked triumphantly down at her before immediately dropping to one knee.

'Molly Hooper, you are the most beautiful, brilliant woman I know.' He reached into his pocket and pulled out a small box, flipping it open to reveal a beautiful diamond solitaire ring. 'Will you marry me?'

Her eyes widened in delighted surprise. 'Yes, yes, yes!' She cried out, launching herself into his arms with a joyful sob and plastering his face with kisses. He caught her around the waist and chuckled at her exuberance. Turning her face with his hand, he guided her stray kisses to the one place he wanted her lips to be. On his.

'…and with a final shout of 'yes,' she jumped me!' Sherlock leaned down, his eyes alight as he regaled his captive audience. 'I wasn't prepared for the assault and it knocked the breath out of me, but she didn't notice, too intent on kissing every part of my face she could reach. After that, I insisted we marry immediately and contacted a certain government official to speed up the process. We were married the next day and have been happily together ever since.'

'Is that so?'

Three heads turned to the doorway in surprise and a trio of small voices cried out, 'Nana!'

Sherlock's eyes widened and his cheeks tinged pink guiltily as his audience turned its attention to Molly.

'Nana, is it true you knocked Grandfather over?'

'Did you really almost leave him?'

'Why did jump on him?'

Molly placed her hands on her hips. 'Now, those are very good questions.'

'I thought you were taking a walk with Georgina and Claire,' Sherlock said in false indifference, his eyes shifting ever so slightly as he glanced at his wife, her beautiful hair now more white than brown.

'We didn't get far, the pregnancy is tiring Georgina out something awful. So I decided to come see what tales you are weaving to my grandchildren.' She smiled knowingly and walked over to his chair, settling herself on the arm. 'Please,' she gestured to the eager ears waiting for answers. 'Continue.'

Sherlock stared at the expectant faces of his grandchildren, his mind racing. He breathed a sigh of relief when their parents suddenly called from the other room for the children to start preparing for bed.

With a chorus of disappointed groans, they hugged their grandparents good night and slumped from the room.

'Sherlock,' Molly said with a smile, as soon as they were out of earshot. 'Were you padding our proposal story?'

He shifted in his seat, looking anywhere else but at his wife. Even after forty years of marriage, he hadn't developed an immunity to those brown, doe eyes of hers.

She slid down into the chair and pushed his side until he made room for her to cuddle next to him. It was their favourite position. Neither one on top or underneath, but next to each other. Side by side, as equals.

A pout on his lips, Sherlock turned his face away.

Molly caressed the wrinkles around his eyes and brushed the silver curls around his temple. He shivered and reluctantly relaxed his frown. She knew it was a dirty trick, but it was the quickest way to appease him when he was in a strop.

'Sherlock, look at me,' she asked softly. He turned his head slightly, but still refused to catch her gaze. Shaking her head fondly, Molly pressed a kiss to his cheek.

'I like the original story better,' she whispered in his ear. His nose twitched in annoyance. Molly smiled wickedly and casually fiddled with her well-loved pair of rings. 'You remember, when I was already on the plane and you called in an emergency deplane and got arrested, shouting 'marry me!' as they dragged you from the terminal. I especially liked the part where I had to wait two days until Mycroft had you released before I could finally get an explanation. And a kiss.'

'Forty bloody years. Am I ever going to live that down?' he grumbled, a smile tugging on the corner of his mouth.

'Nope,' Molly replied cheerily. She cupped his cheek and pulled his lips down to hers, appeasing him with a delightfully long kiss. He moaned in frustration when she broke away. Laughing happily, she stood up and went to tuck the grandchildren into their various beds and sleeping bags.

Sherlock watched her leave, his heart feeling full and blessed. However their relationship had started didn't matter. What mattered was that it did.