Kim leaves you and Becky in her foreskin

By: Cheese111

You feel yourself become dizzy as Kim lets her cock sway freely in the breeze, walking around in her room. Just feeling her two little toys squirm was a delight, but she couldn't spend all day playing around. She had work to get to. Now that she had uncovered the ability to shrink people by distilling her cum, what else would be possible? The stories she read spoke of so many different abilities, each stranger than the last. She couldn't wait to start experimenting.

Your prison calms down as it seems your sister has finally sat down somewhere. It was the first time you had the opportunity to take stock of your situation. To call it bad would be an understatement. Below you was the slimy, hot flesh of Kim's cockhead. It throbbed and pulsed irregularly, seemingly reacting to your squirms sometimes. The rest was probably Becky's futile attempts at resistance or escape. A dense blanket of heavy skin held you down firmly. It restricted your movement to little more than useless wiggling.

Even after what she put you through there was a palpable sense of pity for her. She didn't deserve any of this. Neither of you did. You fell still, accepting your entrapment. Suddenly the walls bore down on you. "Hey, no slacking off. I didn't put you there so you can just laze about all day. Now keep squirming or you get a front row seat to Big Willy making a meal out of your girlfriend."

How could your sister be this heartless? She always seemed so normal and well-adjusted. A thin veneer of civility maintained for over a decade. But now the truth was out and the illusion shattered like glass. She saw you, Becky and pretty much everyone else in this town like toys for her to use and ****. And there was nothing you could do to stop it.

"Mmmm, I'm so close, little Willy. You're gonna love this." She murmured. Even packed underneath the thick foreskin you could hear the sounds of something bubbling, the hiss of a torch and the sound of Kim gulping something down. Sometimes she'd idly stroke her cock, but you feared far worse was on the horizon. Some of those drinks did something to Big Willy. The shaft would pulse and throb like a bodybuilder looking to impress someone. Whatever she was experimenting with, it was having an effect on her cock.

Worst of all was the complete loss of time. You were unable to tell if you'd spent minutes or hours in this sweltering, damp hell. At some point your stomach began to rumble. The fear crept into the back of your mind. What if she leaves you in there to starve? Or maybe it's not even malicious. She just forgets she even put you there. Already she doesn't seem to care that you've stopped wiggling again. How long could you survive in here? The chunks of stale cum stinking up the place weren't exactly part of a healthy diet. But if push came to shove, you'd do whatever is needed to survive.

The pressure, the heat and your hunger and thirst were starting to get to you. You had to hang in there, but your senses were getting fuzzy and weird. For a moment the damp foreskin felt like a huge, snuggly blanket. You try to keep yourself in the real, but your mind is simply at its limit. With no hope of salvation you pass out. Becky experienced much of the same, having passed out an hour earlier.

When you open your eyes again bright light burns them. You shield your face before looking around in a daze. You were covered from head to toe in disgusting slime and you smelled like the inside of your sister's cock. That shit was definitely not just a dream. And as you looked up you realized your true nightmare had only just begun.