You've long wished to fulfil your fetish of being eaten alive by another person. Now you've gained the ability to shrink you make your play, you get your step-sister's favourite yogurt and shrink yourself into it, hoping she'll come and eat it without noticing you or realising what's happening.
It doesn't take long until Beth arrives and your won trap is sprung. The moment finally comes where your step-sister's mouth opens up before you and you end up in her mouth in a spoonful of yogurt. However she notices something weird in her mouth and spits you out into her palm.
Beth figures ...

You've long wished to fulfil your fetish of being eaten alive by another person. Now you've gained the ability to shrink you make your play, you get your step-sister's favourite yogurt and shrink yourself into it, hoping she'll come and eat it without noticing you or realising what's happening.
It doesn't take long until Beth arrives and your won trap is sprung. The moment finally comes where your step-sister's mouth opens up before you and you end up in her mouth in a spoonful of yogurt. However she notices something weird in her mouth and spits you out into her palm.
Beth figures out what you were doing and isn't happy. You were seconds away from slipping down her throat and losing her life inside of her. She never consented to doing this too you, she's too nice to what to do that. She does love you though so she's going to roll play with you and let you jerk off into your step-sister's wet hungry mouth as you play out your fantasy of being inside of her. You cum but it's simply not enough, you want the real thing. Beth worries about being caught so if you really want her to do this to you, you're going to have to earn it in her pussy. You make her cum and she keeps up her side of the bargain and lowers you in. However the reality of now facing your actually suffering demise dawns on you and you shout and beg that you've changed your mind, but at this point Beth isn't going to take no for an answer.