Back home, your girlfriend Fiona greets you with a kiss. She tells you she got a call by her best friend Joan and she invited her for dinner tonight with her husband Sean and their children Tom and Maddie. They would be there in an hour and a half.
You wonder if you should tell Fiona about the socks, but she hurries back to the kitchen to finish preparing tonight's dinner.
You then go to the bedroom and strip off all of your clothing until you are completely naked.
You try on the socks you bought. You were expecting that if they really were magical you would have felt it somehow but they just seem like ordinary socks. You still think it is worth a try. You open the closet and pick a pair of shiny black flats belonging to Fiona.
You try to slip your feet inside, but they are too big and you only manage to insert the tip of your feet inside the shoes. The socks begin to constrict your feet and you see both the socks and your feet shrink until Fiona's size 7 flats are a perfect fit.
You ask Fiona to come to the bedroom and quickly get under the sheets, still wearing her shoes. Your cock rise at the thought of the transformation to come.
When she sees you lying in the bed with your discarded clothes nearby, Fiona smiles and begins to undress.
“I guess we have plenty of time before Joan and Sean come. We can put it to good use”
“I also have a surprise for you “ you say , feeling the changes creep up your legs, making them shorter and smoother.
“What is it?” asks Fiona as she enters the bed.
“You will find it soon enough.”
You get on top of her and shut her up with a passionate french kiss.
When you enter her you spread your legs so that your shoes don't touch her feet. You were ten inches taller than Fiona, but now, your legs have the same length.
You caress Fiona's rounds breasts, thinking that you will soon have identical breasts on your own body
Your hips widen and your ass swell. You feel a gentle tug on your balls and you think “No, Not yet! I can't lose my dick now!”
You feel that you have a little bit of control on the change and that you can keep your penis if you focus your mind on not losing it.
Your waist is pressured as if it was squeezed by a corset.
You keep thrusting inside Fiona's wet pussy with your rock hard dick and you feel cum building up inside. You try not to get lost in pleasure as your mind fights to protect your crotch from the power of the socks.
Fiona caresses your body and moans in ecstasy. She is too enraptured by her orgasm to notice your chest hair thinning and disappearing under her touch. When her hands reach your now sensitive nipples, budding breasts begin to swell.
Your penis, gorged with semen, aches for release. You do not control the changes anymore and you feel it contract in small pulses inside Fiona's vagina.
You stop fighting against the change and you climax instantly. You ejaculate for fifteen seconds, thoroughly emptying your balls which shrink into nothingness. You can't stay inside Fiona anymore as your penis is reduced to a little nub.
She stares at your crotch as your dick morphs into your clitoris and your vulva opens slowly beneath it.
"You... You are transforming into a woman." Fiona says, her voice shaking.
You get out of the bed and stand up, giving her a better view of your changes.
"Even better, I am transforming into you." you say as your breasts reach their final size.
"but, how?"
You point at your feet with a dainty finger "These are magic socks. If you wear someone's shoes with the socks you can turn into them. It is awesome!"
"Are you sure you can transform back?"
You clear your throat and when you answer, your voice is definitely female.
"I guess I will have to wear my own shoes with the socks for that."
The change finally reaches your head and Fiona watches fascinated as your hair lengthens and your face becomes a mirror image of hers.