Changed forever

But you can't forget it. Jess, your sister, laid her fingers on your cock. Soon, she's going to find her phone. It'll probably take her a little bit of time to realize that Katie took those filthy pictures, and then she'll be pissed that you didn't tell her.

But if you tell her, you know how your cock will respond. It'll respond the same way it did just now. It'll be tented, sticking out of your pants, and there for Jess to oogle and grab and...

Oh fuck.

Your normal fantasies about Katie have changed a little. The images flashing through your mind aren't of your redheaded minxy slut of a roommate, they're of your sister. You watched her grow up, you snuck peeks at her dressing. Your asshole friends were always trying to get pictures of her tits, up her skirt, and you suspect some of them might have gotten to first base or beyond. That thought alone makes you...jealous...it makes you jealous because your whole life you wanted just the slightest touch from Jess. She was a runner and a swimmer. She was in amazing shape. She had the softest finger tips you've ever felt on your cock and you're practically burning for more.

Oh fuck.

You need that again. You need...and the gears started turning as you get dressed.