'Let me just give Mary a quick call' said John as Lyanna shut the door behind her.

'Okay' replied Lyanna.

'Hi Mary, listen are you free for lunch? There's someone I would like you to meet. Okay. Alright, we will meet you there. See you in about 10 minutes. Love you too, bye.'

Lyanna smiled as she listened to the conversation. Living with Mycroft all her life had meant that she was not used to sentiment, especially not on a regular basis.

'Come on Lyanna' said John with a smile.

'Where are we going?' inquired Lyanna

'We are going to Mary's favourite Italian restaurant' replied John 'She is going to meet us there'

'Okay' replied Lyanna with a grin.

Lyanna watched as John tried to hail a cab – without success. She smirked before stepping in front of John and hailing a cab with ease.

'Another similar trait of yours and Sherlock's I see' said John with a smile as he and Lyanna climbed into the vehicle.

'It just comes naturally' replied Lyanna, hiding her smirk.

On the way to the restaurant, neither John nor Lyanna struck up a conversation. It suited Lyanna, as she was never really one for pointless chit chat.

'Here we are then' said the cabbie.

Lyanna climbed out of the cab, while John paid. While she was waiting for John, Lyanna looked through the window of the restaurant. It was full of couples and families. Lyanna rolled her eyes – typical.

'Come on then' said John in a cheery tone

Lyanna looked up and followed the doctor inside. Once inside, John spotted someone and waved.

'There she is' said John 'Let's go'

Lyanna smiled and followed behind John. She didn't know why, but she felt rather worried about meeting Mary. She had thought about it a lot and had come to the conclusion that she wanted Mary to like her.

They reached the table, and Mary stood up and John gave her a kiss.

'Mary' began John 'This is Lyanna'

Lyanna smiled brightly and held out her hand for Mary to shake. Mary shook her hand and gave Lyanna a warm smile.

'Hi' said Mary 'It's lovely to meet you'

'It is wonderful to meet you too' replied Lyanna 'I've heard a lot about you from John'

'All good I hope' replied Mary with a chuckle 'Please take a seat'

'Of course' replied Lyanna with a smile as she sat down across from Mary.

'Lyanna's our new assistant' John told Mary once they had all sat down.

'Really' said Mary 'How's it going? With Sherlock and John, are managing to cope'

'Very well actually' replied Lyanna 'I haven't done much yet, but I am sure once Sherlock gets a new case, things will start to pick up'

'Of course they will' said Mary with a smile 'Just don't let either of them overwork you, and if they do just let me know. And I will give them a good beating'

Lyanna laughed, as did Mary at the shocked expression on John's face.

Conversation settled and the trio ordered their drinks. While they were waiting for their drinks, Mary started up the conversation again.

'So Lyanna' began Mary 'Why did you want to become John and Sherlock's assistant?'

'Well you see' explained Lyanna 'I am in fact Sherlock's- Oh thank you'

Lyanna stopped to thank the waiter who had just put their drinks down. Mary and John did the same. Lyanna waited until the waiter had left before she proceeded with the conversation.

'Sorry Lyanna' said Mary 'You are Sherlock's what?' she inquired as she took a sip of water.

'Daughter' replied Lyanna.

Mary nearly choked. John patted her back gently until her coughing had ceased.

'You are Sherlock's daughter?!' yelled Mary.

'Shhhh' said John 'We are trying to keep it a secret'

'Sorry' replied Mary.

'No worries' replied Lyanna with a smile

'I just cannot believe it' said Mary.

'What? That Sherlock has a daughter' said John as he took a sip of his drink

'No' said Mary 'The fact that Sherlock has actually slept with someone'

This time it was John's turned to start choking. Mary and Lyanna laughed, while Mary patted John on the back.

'You know?' said John once his coughing had ceased 'I didn't even think about that'

'I'm sorry' said Lyanna 'Where did you think I came from? I didn't just grow on a tree'

Mary laughed.

'Sarcasm - one of the best traits in a girl' siad Mary with a smile

'Thank you' replied Lyanna with a grin

'So tell me Lyanna' said Mary

'Tell you what?' inquired Lyanna

'Tell me all about you' said Mary 'I want to know who Lyanna Holmes really is'

'Well that is a very long story-' began Lyanna.

-30 minutes later-

'And that is how I ended up at 221B Baker Street' said Lyanna, as she put her knife and fork on her plate.

'Wow' said Mary 'That was-'

'Boring, I know' interrupted Lyanna 'I'm sorry, I got a bit carried away'

'Don't be sorry' said Mary 'I was going to say that was amazing'

'Really?' inquired Lyanna

'Of course' replied Mary 'Listen, I've got to head off. However I would love to spend more time with you Lyanna. How about we go shopping this weekend?'

'Shopping?' inquire Lyanna.

'Ah yes' said Mary 'You've been raised by Mycroft, you've probably never been shopping'

'No I haven't' replied Lyanna quietly, blushing slightly.

'Well life is about trying new things' said Mary 'So, meet me outside Speedy's café on Saturday at 10am?'

'That sounds good' said Lyanna with a grin 'I am looking forward to it'

'As am I' replied Mary 'Now, I must be going'

She stood up, as did John and Lyanna. Mary gave John a kiss and Lyanna a hug before grabbing her coat and leaving.

'Bye' she called

'Goodbye' replied John and Lyanna.

'Now' said John 'I've just got to pop to the loo, then I shall pay and we will head back to Baker Street. Okay?'

'Sounds good' said Lyanna

'Good' replied John with a smile 'Give me a minute'

John got up and headed over to the men's toilets.

When John came out, Lyanna was waiting for him – holding his jacket.

'Thanks' he said as he slipped it on 'Now let me just pay and we can go'

'No need' said Lyanna

'Sorry?' inquired John

'I already paid, so we can head back to Baker Street' replied Lyanna.

'Lyanna – no' said John 'Here let me pay you back'

'No John' said Lyanna 'You have done so much for me, this is just a small way of saying thank you'

'But-' attempted John

'No buts!' said Lyanna 'And that's final'

'But-' mumbled John as Lyanna hailed a cab

Lyanna pretended not hear him as the pair climbed inside the taxi.

'So…' started Lyanna, once John had given the cabbie the address.

'So, what?' inquired John.

'When were you planning on asking Mary?' inquired Lyanna.

'Asking her what?' said John

'To marry you' Lyanna replied, rolling her eyes.

'Oh, well- Hang on, how did you know I was going to propose?' inquired John

Lyanna just looked at him, as if to say; 'Did you really just ask that?.

'Oh yeah – stupid question' said John 'Um, I don't know. I was thinking of asking her to dinner tonight and asking her then'

'Yes' said Lyanna

'You think I should?' inquired John

'Of course' replied Lyanna

'Wow' said John

'What?' inquired Lyanna

'Nothing, it's just sometimes you act so much like Sherlock and other times you, well – don't' replied John

'Yes, well unlike my sociopathic father' said Lyanna 'I have the capability to allow a little romance into my life – not too much though' she said with wink.

John just laughed, as the cab pulled up outside 221B Baker Street.

'221B Baker Street, here we are are' said the cabbie.

Lyanna climbed out and John followed after once he had paid the cabbie.

'Lyanna' John called as Lyanna went to walk into the flat.

'Yes?' inquired Sherlock.

'Do you mind if I go and reserve a table for dinner tonight?' asked John.

'Of course not' replied Lyanna 'Where were you thinking?'

'Urmm, well-' started John

'How about The Swan?' suggested Lyanna 'I hear the food is lovely there'

'The swan…' John repeated 'Yes, I think that will be perfect'

'Good' said Lyanna 'Now go and reserve a table before they become fully booked'

'Will do' replied John with a smile 'See you later Lyanna'

'Bye John' Lyanna called after John as he strolled off down the street.

Lyanna smiled and rolled her eyes before stepping inside 221B Baker Street.

'Oh hello love' said Mrs Hudson once Lyanna had shut the door.

'Hi Mrs Hudson' replied Lyanna

'How was lunch with John?' inquired Mrs Hudson

'Quite satisfactory' replied Lyanna bluntly as she sauntered up the stairs to Sherlock's flat.

'Lyanna' said a deep velvety voice as Lyanna stepped inside the flat.

'Hello Sherlock' said Lyanna.

'How was your lunch with Mary?' inquired Sherlock

'It was nice' replied Lyanna 'Sherlock, I have a question for you'

'And what would that be?' inquired Sherlock as Lyanna walked into the living room.

'Are you free this evening?' questioned Lyanna