There was as silence for a moment where the two held the other's gaze, then John turned back to his book.

Sherlock smirked once John had turned away. The detective sprang up and quickly tucked himself under the crook of John's shoulder while grabbing his arm, lifting him up.
"Sherlock! What the devil are you—this is ridiculous!" However the ex-soldier was surprised, he countered the other by forcing his free arm around Sherlock's and pinning it back. The two wobbled for a moment before Sherlock was forced to let go of John.

John wasn't done. No, if Sherlock wanted to play this game he would not let him win. Before Sherlock had fully stood; figuring it was all well and done, John took hold of the man, twisting his arm behind his back and forcing him to the ground.
"Well played." He mumbled.
"You started this Sherlock." John said, holding a firm grip, but only enough to constrain the frustrating man.
There was a challenge in both their eyes and Sherlock made to spring to his feet.

John was quicker however and moved from his kneeling position and tripped Sherlock's legs out from under him. Sherlock was on his back and John sat above him, legs pinning the others down and Sherlock's hands pinned above his head.

Sherlock lifted his head in assessment to his new position and dropped it back with a flustered sigh.
"Give up?" John asked, slightly out of breath.
Sherlock tilted his head toward him and looked him in the eye.

"Oh, I don't know about that." He stated thoughtfully.
"You may have genius, but now I have the upper hand."
Sherlock didn't answer for a moment then smirked again.
"What?"
"I do wonder at the expression of Mrs. Hudson should she come up those stairs."
John looked down at this. He was sitting on top of the detective. He recovered his thoughts however and shook his head. "No, no that will not work on me. Do not turn this situation around. I see what you are doing."
Sherlock raised a brow, "Are you sure?"
Actually, John was not quite sure at this point, but was determined to not let Sherlock win.
"Yes. Now, do you give up, or do we have to sit stale-mate in this ridiculous game?"
"Oh, I wouldn't call it a stale-mate."
John looked at his flat-mate, racking his brain at the turn the last few minutes had taken.
"Fine, fine," John said defiantly, shifting his weight and flexing his grip on Sherlock's wrists.
Sherlock repressed a laugh, but John saw the amused look in his eyes.

He held back the urge to reciprocate that stupid look that always seemed to make John join in Sherlock's amusement.

The two sat still for a minute or two. Sherlock had reverted to closing his eyes, while John tapped one of his fingers absent mindedly in impatience on Sherlock's wrist; glancing around at anything but the man in front of him. He could hear the ticking of the clock on the mantel and had had enough. "This is ridiculous."
"If it is ridiculous, why do you not let me up?" Sherlock asked, not bothering to open his eyes.
John cursed silently, because he knew this was a little experiment of Sherlock's, whether it had started out as one or not. And he would not give in.
Sherlock opened his eyes and looked at the flustered doctor and gave a laugh that vibrated in his chest.
"It's—it's not—you're a prat you know that?" John couldn't help but return a laughing grin.
"Alright John, I give up, you can let me up."

John hesitated a moment; slightly surprised, but let go of his grip and stood up, holding his hand out. Sherlock took it then straightened his robe.
"So, when did this little scene become one of your experiments?"
Sherlock quirked up a smirk and glanced at John, both in amusement and odd delight that John had came to this assumption. "One can only guess." He said surely and walked over to the couch, picked up John's discarded book, and sat down, stretching his long legs out on the coffee table.
John didn't move at first, puzzled, then turned to see Sherlock sitting there.
"Aren't you going to continue your reading, John?"

(A/N: I hope they stayed in character enough. This was fun to write, hope you enjoyed reading!)