Giantess step-Sister Shrinks You!

Description: You see my eyes widen at something on my phone. a mischievous smile comes across my face as i look up at you. uh-oh, you think. this can’t be good. i tell you that i just downloaded the new size app, and i want to test it out on you. all i need is your exact height measurements. this will just be a little harmless fun!  you warily agree, knowing you shouldn’t, but unable to say no to your step-sister.  with one tap, i tell the size app to shrink you down and you’re suddenly shorter than me! i proceed to tease you that you’re the short step-sibling now, haha! i always hated that you were taller than me anyways.  oh and yeah, i know about your giantess fetish!   custom clip, no names used.