Three Ravenclaws and their token Hufflepuff friend were sitting down by the Black Lake. It was the down time, the blank space in between exams and the train ride home; Harry Potter had defeated the year's bad guy and the accusations launched at him had all been disproved; homework was at its easiest and all was right with the world.
The Hufflepuff unshrunk the basket she had obtained from the Kitchens and one of the Ravenclaws conjured a picnic blanket for the four to share. They sat there, munching on sandwiches and other finger foods, sipping on Butterbeer. Little was said; conversation was not needed to fill the comfortable silence between the friends. As they moved from the savoury foodstuffs to the cakes, sweets and biscuits, a group of Gryffindors pushed out a small boat, decorated in House colours, of course, onto the water. The 'Claws and 'Puff watched with a sort of morbid curiosity. The boat was rocking precariously from side to side, and judging by the loud arguments easily audible from the shore, there was no clear Captain of the HMS Gryffindor.
It all came to a head when two students – one a Weasley, judging by the flame-red hair – stood up from their seats and began to fling hexes at one another. Due to the instability of their footing, they almost all missed, leading to some interesting effects when the spells collided with various innocent flora and unlucky fauna on the shores. Eventually, one connected; the Weasley was sent flying a good distance overboard to land with a loud and large splash. The Gryffindor sank, dragged down by heavy robes, until he or she was lifted clear of the water by the school's own Giant Squid.
It was too good an opportunity to pass up.
"Well," said the supposedly naïve and innocent Hufflepuff, "I've seen enough hentai to know where this is going!"
Thanks to Muggleborn Headcanons on Tumblr for the line and inspiration for this drabble.