"Oh god, that’s right, little brother. Yeah, stroke it just like that for me. It would be wrong of us to touch each other, but I love watching you jack it to my big tits. I want to see how much you cum from jerking off to your big sister."
My sister has this fetish where she likes to pretend she’s a sex doll; like a mannequin. She lies there stiff and immobile while I dress and undress her in various sexy outfits she keeps locked in a chest in her closet labeled “doll clothes.” She doesn’t moan or move the entire time as I do whatever I want with her, spanking her, fucking her mouth—which she keeps open in an “O” shape like some kind of Blowup Betty—,using her pussy or ass to cum in then stripping her and cleaning her off in the shower. It’s weird at first but I’ve come to love playing with my dollbaby sister