Title: Oops I Fucked my Step-Sister!
Prompt: sweater
Word count: 415/415
Warnings: step-sibling incest
These microfics can all be read as standalone fics; however, they are intended as Easter eggs for Chapter 1 of my Kingdon NSFW Week 2025 fic Kindred Spirits Inc.
Packing for his second year at college, there were a lot of things that Frank knew he needed to bring: books, his laptop, condoms – the essentials. But the sweater that his grandma had made him? Yeah, that one hadn’t made the cut. He had tossed it in the back of his closet because Mildred was still alive and kicking at 95, and the way things were going, she was going to outlive them all. He would be wearing that sweater, in all its lumpy, misshapen glory to his own funeral while she looked on.
Back at home for Thanksgiving, there was a sharp chill to the autumn air. When Mel had started shivering after dinner, all piled in the family room to watch a movie – Elf of course – she had snagged the sweater from where he had tossed it earlier, as soon as his step-dad had left to take Gamma home.
(“Mel, sweetie, that color looks so good on you. And at least someone appreciates it, unlike Frankie.” His ma had sent a wink his way. They all knew how ugly it was, the deep green being the only redeeming factor.)
She was swimming in it. It was so big that when she pulled it over her head, it covered the tiny little sleep shorts that she had changed into after dinner. He could see every beautiful inch of her bare legs.
Fuck, when had his baby step-sister gotten so fucking hot?
When she crawled into his lap on the couch, space a premium at the blended Langdon-King household, Frank had had to pull out every trick just to not pop a boner.
(“Look, hon, Melly must have missed her new brother so much, she fell asleep curled right up on him. It’s so nice that the kids are all getting along. I know it’s been a hard transition for everyone.”)
Once everyone had gone to bed, he slid his hand up the inside of her thigh, needing to send her to bed so that he could go jerk off in peace. But her small hand covered his, encouraging it’s path up higher.
Up, up, up, and under the seam of her shorts, to where she was bare and soaking wet, just for him.
When he fucked into her, bare because he had left all his condoms in his dorm, he pushed the sweater up above her tits so that he could mouth at the perky nipples.
