"Dad," Arianna Holmes looked up from her pointless chemistry homework. She's worked on it for five minutes, completed it and now wanted to ask the question that was playing on her mind.

"Mmmm?" Sherlock responded, barely looking up from his microscope to see what his teenage daughter wanted.

"Can we dye my hair?"

"John will shoot you,"

"We could say it was another experiment!" Arianna said with a huge grin on her face. Sherlock contemplated her idea. Arianna was half his DNA and half John's so it was likely he'd buy the experiment excuse and just assume Arianna had inherited yet more of Sherlock's DNA.

"Maybe, but you're a very special girl anyway Annie, you don't need to dye your hair," Sherlock wasn't just complimenting his daughter though when he called her special. Let's face it, Sherlock didn't do compliments. No when he called her special he was referring to the way she'd been made. Somehow Sherlock had managed to persuade Mycroft to use some top secret government technology which allowed the genes from two men to be fused together and then placed in a woman's womb. It appeared that there were days when Sherlock thanked the lord for having a brother in the government.

"Are you sure we couldn't dye it, I only want to make it a couple of shades darker."

"It's a shame you don't want to bleach it," Sherlock muttered.

"Bleach it? Why would I want to bleach it?" Arianna exclaimed.

"Because it's cheaper. You could've made it in your school science lab."

"Considering last time I experimented at school I blew a hole in the ceiling I don't think that would be a good idea."

"I said you could build a bomb in your science lab, I didn't say you should build a bomb in your science lab."

"If I remember rightly, and I do Dad, because I'm like you, you jumped out of your chair shouting 'YES' at the top of your lungs, granny Hudson nearly had a heart attack."

"Only because I was so proud of you Annie."

"So can I dye my hair?"

"Ask John when he gets in,"

Luckily for Arianna, she didn't have to wait long, especially as she had inherited her short attention span from Sherlock. Soon a key twisted in the lock and John's footsteps filled the once silent hall. Arianna saw her chance and sprinted down the stairs.

"DAD!" She ran towards him embracing him tightly. "How was your day? Can I get you tea? You look nice, is that a new shirt? Yes that is a new shirt, did you choose it? Well clearly you did, you have such lovely taste-"

"Our Annie wants to dye her hair" Sherlock interrupted his daughters interrogation and leant over to greet his husband with a kiss.

"Is she making the hair dye with you?"

"No." Arianna answered quickly, she knew John would never agree to anything if it involved an experiment.

"I suppose so, but it's not happening here. You can go to the hair dressers."

"But-"

"Sherlock, I thought we agreed that when Annie was born there would be fewer experiments. And I am fairly sure there have been twice as many under this roof since her birth!" John cut his husband off. 'It is a shame' he thought 'that she inherited far more of Sherlock's characteristics. Some days I just wish this household was normal.'