Sherlock just came- without John doing ANYTHING to manually stimulate him. Well [u]damn[/u], that made John feel incredibly flattered and skilled, even with cum on his face. He really needed to wipe that off, soon, before it started to dry- but he was still in a state of amazement.
"You actually just...I've never been able to do that to someone before..." John looks up at Sherlock, feeling incredibly foolish and embarrassed at the words coming out of his mouth, "You actually find me that sexy?"
He knows that Sherlock probably thinks it's idiotic that John even has to ask, after all the evidence was right on his face, but he honestly can't wrap his head around the idea that someone as gorgeous as Sherlock would be [i]that[/i] attracted to him.
Sherlock looked at John with a combination of a fond smile at John's disbelief, and the familiar "Obvious" eyeroll that he used whenever John asked a stupid question. This response made John smile like he had just won the lottery.
He stood up and went to the sink to wash off his face. When he turned back around he was struck by the sight of Sherlock- still standing there, breath still slightly ragged, body still wearing the left over flush from orgasm- the orgasm [i]he[/i] had caused. He was the only one who had ever seen Sherlock like this, hopefully the only person who ever would. He wanted to tell Sherlock he loved him. The realization hit John, he had known that he felt this way for a while, but this is the first time he had felt any desire to express this verbally- to take the risk and say those words. Still though, that was...dangerous. It put him at too much risk, even with Sherlock.
So instead, he just walked up and wrapped his arms gently around Sherlock, kissing him on the lips softly.
((So, I'm going to put my next idea below this, but if you don't want to move on yet, ignore it. I just have no other thoughts for where to go from here))
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***A Few Weeks Later***
John zipped up his travel bag and took one last look around Sherlock's room- his room too, as he was now totally moved into it, [i]their[/i] room. A room that, unfortunately, he would not see again for 10 days. He sighed, unkindly cursing social conventions that insisted that he attend the funeral of some uncle he hadn't spoken to in 10 years. Yes, the uncle was one of his few remaining relatives, and yes, it was very kind of him to include John in his will, but [i]10 days[/i]! Ten days away from Sherlock, ten days of Sherlock running about without John there to make sure he stayed safe. Ten days having to talk to people he didn't really know, and certainly didn't care for. It would be miserable.
He wished Sherlock was at least here to say goodbye. This also made John worry, it confirmed his suspicion that Sherlock had 'deleted' the multiple times John had told him he was going out of town. His guess, based off of the unhappy scowl and lack of reply he had gotten from Sherlock every time he brought it up, was that Sherlock didn't want him to go, and thought that if he didn't know about the trip, it wouldn't happen. Which meant that Sherlock would come back from the lab to find John gone, and have no idea about where he was. He had actually yelled at Sherlock about it the last night, frustrated at being ignored and stressed about the trip. It had ended up being him just screaming about Sherlock taking him for granted, then feeling bad and having extremely good make-up sex. He was fairly sure Sherlock hadn't even been listening when he was talking about the trip. Not good.
John sighed, rubbed his hand through his hair, and looked around again. There must be someway he could clue in Sherlock. He unconsciously fingered his dogtags through his shirt. That was it! Sherlock loved his dogtags, and he knew what they meant to John- they were a part of his identity, he wore them rather frequently now (always a risk of dying while running about with Sherlock, and he'd rather not end up an unidentified corpse in St. Barts). John placed the dogtags on top of the pillow Sherlock slept on- now Sherlock would know that John was planning on coming back, and hadn't gone anywhere dangerous.
John walked out to the kitchen and wrote a quick note telling Sherlock where he was going, what his flight times were, and when he would be back. He also texted Mycroft the information, and requested that he also try to make sure Sherlock knew where John was going.
John said goodbye to Mrs. Hudson, then went out to get his cab to the airport. He handed his bags to the driver, then climbed into the cab. He didn't see Sherlock standing just down the street, staring at the cab horrified.
Text
To: Sherlock
From: John
Hey, guess you didn't realize the flight was today. I'll miss you. Take care of yourself. Dinner's in the fridge. No shooting the walls, please. Left you a note explaining. -JW
John then looked at his battery. Shit, almost dead, he forgot to charge it last night because of the fight with Sherlock. Oh well, he would have it off during the flight anyways.
((So yeah, you can work with this if you like, or we can do something else. You can have Sherlock less clueless about the situation if you want, I just decided to try and create as much dramatic tension as possible.))