Giantess Sandy Butt

Shrinking at the beach must have been the worst possible place you could imagine shrinking. All these Giantess women ran around, kicking up sand that threatened to bury you, while unaware of your presence. It was terrifying and it was hot and you just wanted to go home but there was no way you were getting off this beach without someone's help. You might as well have been lost in the desert. 
Suddenly you were shaken off your feet by the explosion as a giantess sat down in the sand only mere inches from you. Scrambling to your feet you knew you had no time to be angry, this was your chance so with a running start you began to climb her big giantess ass. 

Thanks to all the sand on her ass it was a quick and easy climb, or it would have been if she wasn't moving so much. Finally, you made it high enough up to see over the peak of her booty and got a glimpse of her face and at there very moment she turned back and looked right at you. "HELP!" you screamed but there was no way she would hear you from here so you'd have to- OH NO! A shadow loomed over as her hand swung back to clean her ass and wipe off all the sand. "NO DON'T!" you thought, you didn't even have time to yell before she hit you with the full force of her unmerciful had. 

Winded and disoriented you stumbled but didn't land in the sand, you were on something soft and... under something soft? OH NO! you gasped in realization that you'd gotten stuck between her massive giantess ass cheeks. "no no no!" you mumbled as the weight of her cheeks crashed together over and over. You couldnt move or react fast enough. She was still wiping the sand off her butt which only helped push her cheeks together harder and faster until finally she stopped moving and she let the weight of her cheeks pin you down in place. You couldn't move and would be stuck here until she gets up or you suffocate, whichever comes first.