A couple of years ago you fell victim to the shrinking virus. Luckily your Step-Mommy found you hiding under the sofa, shivering and took you straight to the Hospital. The Consultant's did what they could for you but you still only remain 4ft tall. You was finally discharged and was told to take your anti-shrinking meds daily. You've been taking it for a good couple of years now, surely you have been cured already. You wish your Step-Mommy would stop badgering on at you to take it. Even though you're small you still have the mental capacity to remember to take a stupid tablet. Despite what she thinks. When your Step-Parent's tell you that they are going on a date night, you grab the opportunity to test out what would happen if you didn't take your medication at the correct time. Minutes later you wake up, barely 5cm tall, shivering and feeling extremally vulnerable knowing full well your Step-Mommy is stomping around the house in her new high heels. When your Step-Parent's come down the stairs to say bye to you, they discover you're not there. "Mm he must have gone to his Friends house". They suggest making the most of the fact that you're not home and having some alone time instead. You find yourself latched onto Step-Mommy's handbag bouncing up the stairs, with no choice but to watch your Parent's do the unthinkable. No step-Son should have to see these things!! But you cannot tell Step-Mommy what's happened to you again, she would go crazy at you for disobeying her! All you can do is watch. You thought it would be ok, you could sit in the bedroom with your eyes closed and your tiny hands over your ears and maybe you could sneak out afterwards once the door is open again. But when Step-Mommy sits on you you find yourself stuck to her pussy, with no choice but to watch your Step-Daddy's cock pound her wet pussy. Quivering in fear in case you get caught... or worse crushed inside of Step-Mommy's pussy. Unbeknown to Step-Mommy, you accidentally become her little vibrator. The shivers of your body trembling her clit. When Step-Daddy cums deep inside of her, he has the biggest load you've ever seen. It's been so long since they've been able to fuck as you just kept getting in the way. But now your little body is in the way of a cum waterfall that comes gushing out of Step-Mommy, your hopeless body doesn't stand a chance. You try your best to swim and to stay afloat in Step-Daddy's cum, but more and more just keeps gushing out of Step-Mommy. Gasping for air, you admit defeat. After all they have done you an accidental favour, it's better for this to end now than to live the rest of your days as a tiny pathetic freak.