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You and your friends decide to have a party and create a shrinking concoction while your stepmom is out. She shows up and you've shrunken yourself so small that she can't see you with all the mess you made putting together snacks. She starts cleaning up and all of your friends get cleaned up with it. Your stepmom decides to have a snack and luckily you fall in her cleavage while she munches away on your friends. Soon enough she's headed to the bedroom, and you realize your giantess stepmom is going to masturbate. You fall from her bra to the bed, and you watch as she fingers her wet pussy and you can't resist it and crawl up on her. Your stepmom realizes your there and decides to use your shrunken body to make herself cum.