Life of a 13 year old- slip the small one into her pussy and the large one into her ass
You take the 2 dildos and approach your sisters firm ass. Her soft snores excite you as you take some of her skin lotion and lube up the rods. You carefully line up the large pink, joy stick and push it into her ass. Her sphincter resisted hard from the intrusion, blocking the dildo. You redouble your efforts and shoved it a bit harder. Finally, her asshole started to stretch around the pink rod, enveloping it and sucking it in. Little by little her tiny pucker sucks it in. Then, you freeze.
"Mmmmmmm" Rachel groans as she shifts in bed. You push a little harder forcing the massive shaft 4 inches in her ass hoping she won't wake. She makes a massive grunt of pain as her eyes flutter open. "WHAT THE FUCK ARE YOU DOING ALEX???" She screams at you.
You: