Off the deep end

The scene before you is surreal. All this time you've been watching your friends at school change, men and women turning into cock hungry sluts on PornHub. Here is your sister, slowly turning into a bimboi with a tight ass and fat cock with a load of batter dripping out of her asshole being offered to you.

You gulp and lean forward following Allison's instructions. You deeply inhale taking in the musk of the both her arousal and the jizz pouring out of her ass on your lap. It smells amazing, its so strong that you feel your head get foggy and before you know it you find yourself less than an inch away.

"you can taste it, I know you want to. I know you want to become a nice boi with me. If you do we can fuck each other silly all night." She taunts as she wiggles her ass in front of your face.

You can't resist anymore. Who cares if your parents will be upset with you. Everyone is going to change eventually.

You lean forward grabbing your sisters hips and shove your face into your sisters puckered hole making sure that you can taste everything completely. Its amazing, it tastes just as good as it smells and you hear her moaning in response. She grabs your hair dragging you up and down making sure that you lick everything.

"Good boi!!!" Allison smiles. "Your going to make such a cute boi, I cant wait to use my new cock to fill your ass with batter so we can match."

You are panting now as she releases your head from your buffet of corruption. She turns around with her new cock facing you. More time must have passed than you though because in front of you her pussy is completely gone and in its place is a 7 inch cock with a pair of balls beneath them. Her tits have also grown to D cups. In both body and mind Allison is a fully fledged boi.

"Its too late to turn back now and I told you my ass is aching to be filled." She pulls down your pants and you are so painfully aroused. As she finishes pulling down your boxers she giggles to herself.

"If I'm going to be satisfied then we can't wait like I did for my transformation." She then brings her cock to your face and gives you an order. "Suck it you slut. Show me how much you want tits and a cock as big as mine."

Her words are just make your erection even more painful. You can't even pretend to resist anymore and you open your mouth to get as much fresh infectious cum as you can from your hung sister.

Her taste is incredible as your jaw strains to accommodate her new size and your inexperience certainly doesn't help. She doesn't seem to mind though as she is thrusting into your face leaking delicious precum as she goes while moaning like a wanton whore.

"Once you change and we have fun tonight, I want you to help me feed batter to Stacy." She says this with a wicked smile and her cock down my throat. She knows that you will agree to anything at this point. Shit, you also want to know how Stacy would look with a cock that big and how she would act with the same aching that is now building in my own ass.

"We are going to feed her batter at the next family dinner and I am going to invite her over for a sleepover." Her pace has picked up as your throat relaxes and you no longer have a gag reflex. Its even starting to feel good as it slides in and out of your slut boi mouth.

You can feel her cock get harder in your throat. "I'M CUMMING, DRINK IT YOU FILTHY SLUT" She cries out in pleasure as she pumps her corruptive cum into your stomach. It feels like ecstasy.

Gasping for air after your delicious meal you feel hot all over. Your nipples are noticeably sore, body incredibly hot and your ass is aching. "Oh Allison, I think its happening." you bend over displaying your aching asshole to your cock hungry sister. "Please fill me. Please fill me. PLEASE FILLLLL MEEE."