My sister is wearing tiny booty shorts and a little top. I get turned on when I see her like this so I try to touch her butt and her boobs. She pushes me away and tells me I need a sex doll. Later, when she leaves her phone unattended, I place an app on it that will look like an error message but actually has a subliminal message that will make her immobile until I move her, basically making her my sex doll. She sits on the sofa and swipes on her phone to make a call, she sees the message and in seconds is in a trance. I come in when she is fully under. I can move her at will. I shape her mouth so I can fuck her face, I undress her and fuck her missionary, then I turn her around and bend her over so I can fuck her from behind. I don't pull out when I cum, I love feeling all of my cum squirting into my sister's pussy