Sneaky step sister swaps places with my realistic LoveNestle doll and lets me fuck her thinking it’s the toy

I came home late, horny as hell, and went straight for my new ultra-realistic LoveNestle doll on the bed — lights off, just the glow from the hallway. What I didn’t know is my teasing 19-year-old step sister had snuck in earlier, swapped places with the doll, and was lying there completely naked and silent in the exact same position. The phone I use for recording was already rolling in night-vision mode, catching every insane second: I lube up, slide between her legs, and push deep into what I think is silicone… but it’s warm, wet, and tight in a way the doll has never been. She stays perfectly still at first, biting her lip to not moan, while I start thrusting harder, groaning “fuck this new doll feels too real tonight.” Only when I flip “it” over doggy and she accidentally lets out a tiny whimper do I realize it’s my own step sister taking every inch raw. Instead of stopping, she finally breaks character, whispers “keep going, I’ve wanted this forever,” and starts pushing back like crazy until I explode deep inside her. The ultimate sneaky taboo prank turned real forbidden creampie — 100% authentic shock and lust.