(A/N)
Just as a warning, this does get just a little bit steamy and says a swear word. It's nothing too bad but I don't want to accidentally burn an innocent's eyes. Enjoy!

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It had been two days since John had arrived back home. This case was driving the detectives crazy, as there had been no further clues. John was now dying to know who it was that kept on messaging Charlotte, but didn't dare ask for fear of dismemberment. Who ever it was clearly knew exactly how to make the girl smile.
Currently, Charlotte was sitting in her chair. John was sick of her sitting in his one, so bought her one of her own. It was large, padded and covered in a black cottony fabric. There was a lot off room on either side so that she could comfortably sit in any position. Charlotte took a deep drag of her electric cigarette - she was trying to quit - when there was a knock at the door. It was sharp and came three times. Obviously important.
"Come in." The girl called sweetly, assuming that it was a client.
"I thought you were going to quit?" A rich, familiar voice entered the room. Charlotte tensed, the atmosphere changing instantly.
"No..." She breathed quietly. After closing her eyes tightly and opening them again, Charlotte saw the person that she dreaded seeing the most.
Her.
The Woman.
Irene Adler.
"Pleased to see me, darling?" She purred.
"Irene... You..." Charlotte barely managed. She looked amazing, as usual. Her ebony hair was tied in an intricate braid, and her lips were painted a lustrous red. And she was wearing none other than her sleek, sexy, see through Battle Dress. Underneath, clearly visible to Charlotte was a matching black lingerie set. The younger girl covered her eyes with a hand.
"It's nothing that you haven't seen before." She teased.
"Irene! What are you doing here?" The exposed sides of Charlotte's chair dipped as a sudden weight was put onto it. Irene's soft fingers brushed Charlotte's hand away. She was sitting on Charlottes lap, a leg either side, their faces close. A pink hue covered the small detectives face as she tried to push The Woman off.
"Irene!" She hissed as she was overpowered, Irene's lips being pressed to her jaw. "Sherlock and John will be home soon!"
"Then let's give them a little show, shall we?"
"Irene!"
"Yes, darling?"
"How many times? I... I.. I'm not gay!"
"And I am." Charlotte growled in frustration and Irene's kisses worked their way up to her lips.
"Irene." She murmured. "Why are you even here?" The Woman stopped her attack and leaned back very slightly and biting her bottom lip.
"You say that like you wish that I wasn't here..." There was no reply. "I have something that could help with your case."
"Our case? That's great!" Charlotte's eyes lit up and a smile appeared on her face, something that Irene loved to see.
"But..."
"But? Why is there a 'but'? There's always a 'but'!" The smile disappeared and a pout took its place.
"But I don't think that you like me anymore. So I shouldn't tell you."
Charlotte was torn. She wanted The Woman to stop torturing her, but she really needed this intel! And if she was being honest with herself, the little sex demon was growing on her once more...
"I do!" The words escaped her mouth before she could stop it. "I do still like you!" Irene smirked devilishly.
"That's all I needed to hear." Irene cupped Charlotte's face in her hands and started up another passionate, lust filled kiss. Sighing deeply, Charlotte gingerly placed her hands on Irene's hips and kissed her back, their lips moving in practiced sync. A delicate hand made its way to the top button of Charlotte's button up top, slowly dragging the long nails back and forth along her collar bone. A shudder made its way down the younger girl's spine and a small, breathy 'fuck' left her mouth.
Without warning, the door flung open. Bold as brass, in walks Sherlock Holmes and Dr. John Watson.