Jack makes a promise and older sister

Jack was shocked, Mia could be pregnant, the thought made him feel good, his crush was pregnant with his child, pushing him off his cock, sitting up he hugged her.

“Dose that make you happy, being pregnant” Jack asked.

Mia giggled, “of course it makes me happy, now your stuck with me”

Jack decided to ask the question, “Mia, I have had a crush on you for a while, and that crush has become love, I would love for you to be my wife someday, i would offer you a promise ring, but I don’t have one at the moment...” that’s when Jack cock twitched, shooting out a gob of cum, hitting Mia’s hand, as the gob slid off her hand, a ring was revealed on her finger, it was silver with a small red gem.

“Oh Jack, a promise ring, it’s nice” said Mia as she admired the ring, then turned to Jack, “your going to replace this with a wedding ring...soon...right Jack” she said winking at him.

‘Ok, so my cum can make rings, strange’ thought Jack, then kissed Mia, his cock rubbing between them, as they where kissing a voice interrupted them.

“Well..well...what the fuck Mia, cheating on your boyfriend, not to mention fucking in this house, you know mom forbidden you doing it in the house” Jack turned to see a 23 year old woman standing there in the doorway, she was wearing short black shorts, red T-shirt, she had blonde hair and blue eyes, she was standing there with her arms crossed.

As Mia got off the bed, the woman eyes widened, “what the, your bust...your butt...fuck, are you pregnant” the woman said shocked.

Mia smiled, “Jack, meet my older sister Crystal, Crystal meet Jack, my new boyfriend and future husband” she said while showing off her ring, “Jack is very special, his tongue made my pussy bigger so I could ride his” ‘sigh’ “ perfect cock, his sperm made my bust and butt bigger”

The other sister just shook her head, “you taking **** or something, guys sperm can only knock you up, not make your breasts bigger, and you must of used a pussy pump to make your cunt bigger” said Crystal still not believing her younger sister.

Walking closer, she pulled Mia away from Jack.

‘Hmm, let’s change her mid, (when Crystal and only Crystal touches my cock, all her clothing would vanish as well as get very turned on)’ thought Jack.

“Get away from him Mia, he just wants you to cheat and get in trouble” said Crystal, “this cock is fake, it’s not real” she finished reaching over to yank his cock, but once she wrapped her hand around his shaft, all of Crystals clothing vanished, leaving her standing there shocked and nude, her nipples hardened, between her legs, her vagina started leaking.

‘Wtf, first my i caught my young sister cheating on her boyfriend, then when I touched his obvious fake cock, no cock can be that big and real, then when I touched it, all my clothing vanished...and...oh so horny...need to...fuck...shit, my pussy is so hot and wet’ thought Crystal, Jack smiled as he watched Crystal put both hands on his cock, rubbing up and down his shaft.

Jack looked Crystal up and down, she had (Rank A, level 4) breasts, her butt was nice, (Rank B, Level 1) she had a little patch of hair above her vagina, she must be very turned on as her pussy was very wet, leaking down her inner thighs.

Mia smiled at her horny sister, this was the first time she seen her older nude self, the last time was when she was 4, she had shared a bath, now she was going to watch her fuck.

((Note, only Mia will get pregnant, others will have cum inflation only))