Author's Note: This will be a home for all of my future Potterlock fanfictions. A majority of which will be pure fluff. I do not own any of the characters or worlds therein they exist. The characters and worlds belong to J.K. Rowling and BBC respectively.
Summary: John is having troubles learning the Patronus spell. Sherlock is only too keen to help him learn.
The two 5th year boys standing across from each other in the otherwise empty classroom couldn't have been more different if they tried. A green and silver tie hung around the neck of a black curly-haired boy with kaleidoscopic eyes. The other wore a loose red and gold tie which complimented his straight dirty blonde hair. The Slytherin had angular features whereas the Gryffindor had a far softer face. The one was the top of the class in everything except Astronomy (for whatever the reason he was under the impression that the universe was unimportant), and the other was an average student with an aptitude for healing. One a pure blood the other muggle born. The two boys simply couldn't be more polar opposites, yet they were as close as could be.
A frustrated John groaned "I'm never going to get this spell." "Not with that attitude" Sherlock replied jokingly. A fine silver mist spat out of the wand of the shorter boy. "Expecto Patronum" he shouted loudly, releasing more mist from the tip of his wand. "Show me again" John demanded frustrated at his inability. "Expecto Patronum" Sherlock said effortlessly producing a silver otter from his wand which swam around the room. John tried to mirror Sherlock's movements but once again failed miserably.
"It's a difficult spell, John" Sherlock comforted. "Perhaps you aren't using a strong enough memory" he supplied. "I was using the first time I caught the snitch" John said his irritation seeping into his voice. "What memory do you use Mr. Smartypants?" John asked clearly bothered.
Sherlock ducked his head clearly embarrassed and mumbled something quietly. "What was that" John asked curiously. Sherlock sighed loudly "the memory I use is from the day we first met on the Hogwarts Express." John felt extremely touched and went quiet for a second.
"So I needs a strong, powerful, happy memory correct?" John asked in an odd voice. Sherlock nodded his head still looking down at his toes. The short boy stood on his tiptoes and brushed his lips against those of the taller one. Sherlock blushed profusely and asked slightly in shock "what was that about?" John smiled "why I'm creating a powerfully strong happy memory" and he produced a silver hedgehog from the tip of his wand. Sherlock nervously smiled "if nothing else you have to admire the Gryffindors for their bravery." He leaned down towards the shorter boy and kissed him back.