Disclaimer: I own nothing. All hail the Queen!
Christmas at the Potters'
The ballroom was decorated in tasteful silver decorations. A large fir tree in the corner was covered in silver baubles and twinkling lights. Floating lanterns provided dim lighting. Soft music played in the background while several couples danced slowly in the middle of the room. Many others were scattered around the edge of the room chatting and drinking mulled cider and currant wine.
Sirius stood on the threshold watching for his friends. The room was mostly crowded with people who worked under Mr. Potter at the Department of Magical Law Enforcement and their spouses. A few of Mrs. Potter's friends were also there. Sirius stood on his toes trying to find James or anyone else he recognized.
"I wouldn't be caught under that mistletoe for too long," came a girl's voice from behind him. "I hear Mary is on the pull."
Sirius turned quickly to face her. Marlene stood before him in a plain black dress that hugged her figure down to just above her knees where it ended. Her long brown hair hung in loose curls around her face and down her back. Sirius caught his breath before saying, "Well, McKinnon, you really are a girl. Who would've known?"
She slapped his arm. "Shut it, you! I look fantastic."
"That you do. And as far as McDonald goes, she's always looking for someone to bang it out with."
"Oi! That's my friend, wanker."
Sirius took her arm and pulled her in front of him so they were both positioned under the mistletoe. "I haven't been a wanker for years now, love. No need." He planted a kiss hard on her lips as she struggled against the strong grip on her arms. He pulled his lips away but kept his nose against hers. "You know how I love when you fight," he whispered.
She pulled out of his grasp and straightened herself. "Down, boy!" She held out her hand. "What do you say to a dance?"
He waggled his eyebrows. "A horizontal dance?"
"You are incorrigible!" Marlene grabbed his hand and led him out to the center of the room where more couples had joined the dancing. Sirius placed his hand low on her hip so his fingers just barely brushed her back side. She giggled and he smirked as they began to move to the music. James and Lily passed by them unnoticing. The song ended and they broke apart.
"Come with me." Sirius gestured to the door leading to the hall. "I got something for you." Marlene followed him upstairs to his room. "Wait here," he said at the door before closing it. After a few seconds he shouted through the closed door, "Okay, you can come in now!"
She pushed the door open and, taking in the sight in front of her, closed it quickly behind her. Sirius stood in the middle of the room with his fists on his hips wearing not but a large bow covering his naughty bits.
"Merry Christmas!" he said with a grin.
Written for amerikanka for the September one-shot exchange
Prompts used: Blackinnon, romance, dancing