"Okay, let's hear it. What did you have in mind for me?" You ask your girlfriend. She grins at you.
"Since I know you like older woman with a young little boy, you wouldn’t mind become one, would you?" You gulped but nodded as she knew you so well. It was true you did have a stash of 'older woman and younger boy' porno/hentai saved on your home computer. But actually, becoming one was a bit possible for you. "Is... is it okay if you transform with me?" You ask.
"Of course, honey." She says, raising your head up. "I love to try it with you, plus I could be old enough to be your mom or even your older sister."
"Yes, I would very much like that!" You blurted out as your girlfriend chuckles.
"Alright, here it goes." She begins. "Okay, for your transformation, you will become a 10-year-old little boy."
"10-year-old boy?" You ask. "Babe, isn't that a little too young for me? Plus, what will happen when I get a small penis at that age?"
"Not too worry, hun. I've got this. Now, when you're a 10-year-old boy, you will have youthful and smooth skin with no body hair. Next, your penis at that age will possibly be bigger and thicker as your body will be thin, lithe body. Your personality will be joyful, less annoying than any other kids, respectful, and you will always feel horny when you're with me. And of course, you need a new clothes after your transformation is done, so your new outfit will be a red t-shirt with yellow lighting logo that fit at your age, and dark blue shorts, including your white underwear that could keeps your boner." Your girlfriend finished. "Okay, that should be it. It's your turn, hon."
With that, you start to feel a little nervous, but you're so excited to change your girlfriend. Then, you start. "Alright, for your transformation, you will become a sexy, beautiful, and erotic MILF. Your age will be 40's as you will have a perfect hourglass body and your boobs will big around O cups as it will also spit out of sweet and tasty milk. For your personality, you will be kindness, sweet, motherly, loving, and yet horny as well as you're around me. You will also be skillful at cooking, cleaning, and caretaking. Your new outfit will have a yellow blouse, a long brown skirt, a pantyhose, and a pink apron, including sexy pink lingerie. And another thing, after our transformations, you and I will address each other as mother anc son."
When you finished, both of you began laughing and exciting for your transformations. Then you felt a tingling in your spine, your stomach begins to grumble as it shrinks, along with that your arms and legs thin down as well, your height decreases and shrinks down as you know you're about to de-age when you reach from 16 to 10. With that, your entire clothes are losing while you are getting smaller.
Then, you turn to your girlfriend and watch as a similar change, except she's getting taller as her height increases 4 inches. And occurs to her C cup breasts grow larger as they reach to O cup size. Along with her boobs, her skin seemed to paler a bit. Her whole body had become curvier and thicker, as your girlfriend's body seems huggable.
Your skin gets softer and smoother as you can feel so much energy than at your current age. Suddenly, something feels strange between your thighs. You could feel like your groin is trying to rip out of your pants. Your testicles are changing and growing into a big dick. Of course, it's impossible that the boy at this age would never have had a big penis before. With that, you are now a little boy at the age of 10.
Now, when it's done, you look to your girlfriend, where your clothes are now too loose, hanging off you, hers are now too tight for her new big body. You feel tingly as your face alters as well becoming smaller and rounder as you're getting youthful. And then, you feel your hair grows a little longer as the brown color of your hair becomes lighter as it's become blonde. You look to your girlfriend with her dirty blonde hair, which grows longer to her back as it turns darker and becomes black. You could also see her cute and young face reforms into an adult and beautiful woman as her adorable freckles melt off. Her eyes get wrinkled as crow's feet could now be soon around her eyes as slight laugh lines could be seen around her mouth.
Finally, when both of your transformations completed, your large clothes begin to change from blue shirt to a small red t-shirt of Shazam, your jeans shorten as it reforms into dark short, you feel your black boxers change into a small white panty, holding against your big groin. Your girlfriend's outfit begins to change similar to yours, but you could see her entire bras are reforming into a mature pink lingerie first. Next is her favorite pink T-shirt with Hello Kitty logo changing into the yellow blouse, her shorts reforms as it expands down to her legs and becomes a long brown skirt, her stockings moves up to her thighs and reforms a pantyhose, and finally the apron magically appears.
It seemed the transformation mostly over, both of you examined your new bodies, getting used to your big groin. Before you were done, your MILFy girlfriend then hugs you on top of your head. "How do you feel, sweetie?" She asked with her new sultry, husky, and feminine voice, already getting into her new role.
"I feel... so much energy and excitement, mom." You respond in a young boyish voice. Then, you look up at her while she grins down to you. "Well, I could make it even more amazing, sweetie." She said trailing her hand touches cock. "I can see your 'friend' is very excited to see me, care to have sex with mommy?"