A/N: I don't own Harry Potter
Warning: Wizard/Creature relationship
Word count: 312
Albus stared at the tank. The creature stared back at him. It looked at his long white beard, his royal blue pointed hat, and matching robes decorated in a swirling silver star pattern. Albus Dumbledore was actually fairly proud of this particular set of robes. They had been a eightieth birthday present from a previous lover. He always wore them when he was planning a night of passion. Tonight was no different. He knew Lupin had brought the grindylow into the school, knew the creature would be alone tonight. It was a full moon and the moonlight made the water in the grindylow's tank sparkle. Albus stripped off his robes revealing a silver thong. He smiled as the grindylow pushed its face against the glass of the tank.
"Accio gillyweed," Albus whispered smiling as he popped the leafy greens into his mouth. They tasted like seaweed bubbles as they popped against his tongue. He smiled as he felt the gills start growing on his neck, could feel the webbing growing between his long nimble fingers. He climbed on the desk and put his feet into the tank. The water felt warm, comfortable, against his skin. The grindylow swam up to him. Albus knew it was waiting for him. He'd fallen in love with the creature the moment he'd seen it.
He'd gone to Lupin's classroom to inform the man that Severus would be brewing the wolfsbane potion for him. That's when he'd seen it. The most beautiful creature in the world with its multiple tentacles and it's sharp teeth. It was true love at first sight. The creature swam around Albus' feet. He smiled plunging into the water, bubbles forming along his gills.
"Nox," he whispered causing every light in the room to go out. Then with only the moonlight shining on the unconventional pair Albus had the night of his life.