Incest Seduction/Pull your hand away from your sister
Yup. It's getting weird. She doesn't seem to notice - or mind - but it's a bit much for you right now. You pull your hand off her inner thigh and rest it on the back of the couch. Kim stops her circling finger but otherwise doesn't react. You let a minute or two go by before needing to find a topic of discussion. It's not like you're going to be able to watch TV anyway.
"So, uh, how are things?"
Kim sighs. "Fine. I just wish you were staying here."
"What are you talking about? I'm home all the time."
"But not really." Kim rolls about on the couch and slides her head down onto your lap, turning to look up at you. "I know you'll 'be here', but you're never around. Not like you used to be."
"Sorry Kim. School does take up a lot of my time."
Kim raises an eyebrow. "I'm sure those girls across the hall from you do, too."
"Hey, I'll have you know that extracurricular activities are encouraged by campus!"
Your sister rolls her eyes and slaps your chest. "We used to be more 'extracurricular' too."
"W-wha...?" you reply confused.
"Well..." Kim is circling your stomach with her finger again. "We used to wrestle together."
"That's not quite th-"
"Sometimes you would let me win, which was nice of you, but it was especially fun when you pinned me down. Sometimes you would tickle me senseless and others you would just hold me down forever..."
You nod your head. "Yeah, I remember. It's been years though."
Kimberly pulls her arms above her head and slinkily stretches her body out in front of you. Her back arches pushing her modest chest up into the air. Your eyes trace the contours of her lithe body as she puts on a small show for you.
"Mmmm. That's a shame."