Sherlock walked closer to the door, resting his left hand on the door frame, his cheek grazing the wood of the frame. He could see John's naked body in the shadow of the shower curtain. It was a lot slimmer than he had imagined, though he was not surprised, he was a military man after all.
John rubbed soap up and down his body, Sherlock watched every motion, it was like watching a symphony. He wanted to touch him, he was so close he could taste it. The water fell around John so perfectly Sherlock found himself uncontrolable.
Sherlock crept into the bathroom, slowly removing what he had for clothes. He stood in the bathroom naked, John not noticing he was there. He stared at John who was stil fixated on soaping himself down.
Sherlock was consumed with lust, not something he was use to, not something he had the oppurtunity to control before. He opened the back of the shower and stepped in.
"Sherlock, what the hell are you doing!" John yelled in bewiliderment.
Before John could utter another word Sherlock took the soap out of John's hand and threw it on the bottom of the tub. John watched it fall, all the while Sherlock's gaze not leaving John.
John was so confused, this had never happened.
"Sherlock, this is so inappropriate and I would like you to leave!" John yelled.
Sherlock smiled. "Are you sure about that?" He said as his eyes lowered to another region of John's body.
John looked down, an erection built without him realizing it. He blushed and tried to cover himself, hoping Sherlock would look away. Sherlock smiled and took John's hands away from his body.
"Stop covering yourself, I want to look at it, it helps me to think."
John's eyes widened. "Help you to think? What could you be thinking about at a time like this?"
Sherlock smirked as he looked John from top to bottom. "My next move."
Sherlock grabbed John's arm and pulled him in close, their bodies fitting together like a perfectly formed puzzle. John was so shocked he was not sure how to react. Sherlock stared at John, his eyes glistening from a mixture of the water and confusion. This turned on Sherlock more than he could have possibly imagined.
Sherlock leaned in and kissed John in a passion that can only be measured in possibly one of the cases Sherlock has solved. John tried to resist, but gave in as he realised this is what he wanted. This was why he lived with Sherlock. This is why he left the bathroom door cracked every time he took a shower. This is why he loved watching Sherlock work, because he loved and wanted Sherlock.
Sherlock played at the tip of John's teeth with his tongue, as if knocking for further access. John's mouth parted as Sherlock thrusted his tongue into John's mouth. John blushed as all of this was still new to him. Sherlock played with John's tongue as if he was playing his violin, with every move of his tongue he moved his body with it, like he was in a concert, the beauty was unimaginable to John, it was the only thing he could think of.
Sherlock's long fingers slid down the side of John's body, feeling his arms at his side. "Loosen up, you are always so tense, Doctor." Sherlock said as he took John's and placed them around his waste. John melted even more into Sherlock's body as the hot water hit every pressure point, amplifing every sensation.