***THIS IS A CUSTOM VIDEO, if you want your own, EMAIL ME*** You've been longing to try something and your big step-sister is the perfect person to carry it out. Her ass is even perfect for it. You ask her and she's shocked. "You want me to what?! Don't you know how dangerous that can be? Are you SURE?!" Of course you are, you can't wait to be shrunken and put between your step sister's ass cheeks. You can think of nothing better!  "Good luck in there! Be careful!" Step-sis places you between her ass cheeks and goes about her life.  "...Oops!"