FART SNIFFING Step sis CUMS IN HER DIAPER

Description: I told my step sister i couldn't have full cream milk without getting an upset stomach so it's really not all my fault that this happened, right? i think i'm actually doing her a favour by agreeing to keep it a secret that i caught her wearing a wet diaper. it's just farts, after all. i thought i'd strap a vibrating wand to the outside of her diaper while i straddled her face and blasted my gas into her nose and mouth to help her enjoy it more. i was so bloated and they smelt so bad and the only thing that made me wetter than watching her inhale my stink was watching her moan and cum into her diaper while her nose was buried in my ass. i think she secretly loved it, don't you?