Somehow Sean wasn't feeling so frightened any more. He was still scared but readily put the black socks back on his feminine feet when they were handed to him. It was interesting to note that the socks were now of a size to slip perfectly over his feet. That made sense as Joan's shoes were the last shoes the socks had been in and Sean now had Joan's feet.
Sean was soon feeling tingling in the zone where his thighs changed from feminine to masculine. After about a minute they could see movement once more. Sean's hairy upper thighs became hairless. His skin tone changed. "I think the changes are just continuing from where they left off" the original Joan voiced what they had all deduced.
"I think that's enough" said Sean. "We've proven how the socks work. How about we make sure we can revert" Sean was actually more embarrassed that he had sprung an erection which he found impossible to hide under Marks flimsy gown
Joan wasn't having any of this "No way Sean! You are going to keep those socks on and let the changes progress all the way. You are going to experience being a woman and when you are finished it will be my turn. I'm thinking there will be a need for someone to occupy the Fiona body and I'm volunteering. We have a dinner party that is in need of a hostess"
So under the scrutiny of everyone, including his now male adult daughter, Sean, only wearing Mark's gown watched as the bulge in his groin deflated and his hips widened. He/She was handed a pair of lacy white panties that the apparent Mark (really Fiona) had just collected from a drawer. "You can have these. They are brand new" Sean begrudgingly pulled them up her legs. There was now no doubt she was a woman.
With her modesty covered Sean removed the gown and watched in Fiona's bedside mirror as her upper body changed to match her lower body. Her stomach narrowed, her chest initially deflated but then her nipples swelled and she began to develop breasts. Someone handed her a bra and the real Joan helped her put it on. It was in place before it was really needed.
Sean then watched her reflection in the mirror as her shoulders, then neck changed. Her voice became Joan's when her Adam's apple disappeared. The changes then progressed to her face as at the same time they progressed down her arms. When her eye's changed from those of Sean to those of Joan it was as if she was Sean no more. It was Sean's wife with short hair now returning her gaze in the mirror. It took another 5 minutes for the changes to complete. Sean's arms changed from shoulders to finger tips and her hair sprouted from her scalp, quickly growing to Joan's length. It was only when the changes were complete that the new Joan was able to remove the black socks.
The socks were eagerly accepted by the old Joan, who had stripped down to her own panties and bra. She handed her twin the red and white sundress she had been wearing and put the socks on her feet.