Jon was completely unable to concentrate on the movie. His sister had, for some reason, draped her extremely scantily clad body across him. He was trying desperately not to get a woody, even though he couldn't help imagining all kinds of variations for this sexy scene.
"Wait, I have an idea," Dana said suddenly. "I can't believe I didn't think of this sooner. I'll be right back." She leaned over to the coffee table and grabbed the remote, rubbing her ass enticingly across Jon's now quite prominent boner in the process, paused the movie, and sprung up, nearly revealing her breasts in their entirety under her too short shirt as her tits bounced from the motion, and ran up the stairs.
Jon breathed a sigh of relief, and began desperately trying to think un-erotic thoughts to get his boner down. He had minimal success. He had never noticed how nice his sister's boobs were before.
"How's this one, Jon?" Dana asked as she came down the stairs. Jon turned and immediately re-tented as he watched Dana, his sizzling hot older sister, saunter down the stairs wearing what was effectively a stripperized version of a police uniform. She was more covered than the previous outfit, but, almost as if to compensate, this one was much tighter. She was showing massive cleavage through the mostly unbuttoned top, and had on the smallest pleated mini-skirt that he had ever seen (the female officers in town wore skirts like that in fair weather, but they were much longer). As far as Jon was concerned, she was even less dressed than before. She paused at the bottom of the stairs for a second, almost as if to pose for him (which he appreciated very much), and then continued her march back to the couch. He couldn't believe his simultaneous luck and misfortune, finding an extremely hot girl who was also his sister. All his years of purposefully not noticing her went out the window.
In just a few short minutes, his sister had gone from a conservatively dressed teacher to a sexy and alluring woman. 'Strange,' he thought to himself, 'I wonder where all these sexy outfits are coming from...'
"This was going to be my Halloween costume last year, but I got the wrong size, so I stuffed it in the attic. It's a bit tight, but it's better than that old outfit from before, right?"
"umm...y-yeah,sure, right, much better. Loads better. That last outfit was way too small, your boobs were practically popping out of it...I mean it was clearly too small, this is much tight--better. This is much better, you're practically nude--you were practically nude..." Jon stuttered, than petered out hopelessly. All he could think about was how much he wanted to do her.
"What was that, lover?" Dana asked, as she reached the couch and sat down beside him, leaning over and pressing her breasts into his side. "So do you like this outfit? I think it's rather sexy," she said in a seductive tone.
Jon was rather surprised at hearing himself referred to as 'lover', but before he could say anything, Dana leaned in and, in one swift action, straddled him and locked him into a sizzling kiss, one hand on the back of his head preventing him from pulling back and the other working its way to his pants and beginning to unbuckle them, as she ground her mound across his clothed dick, humping him.
