Jon uttered the words "I wish that until I can get out of this wedding, I fit in better in this new role and can make it through this day."
Just as Jon finished those words, he reached for the gaff he was wearing, but instead her long nails found a pair of satin panties.
She looked down, and realized she did fit in better, and ran to the mirror to see how big of a mistake she just made.
And it was a whopper, to 'fit in better' in his new role, Jon was now Joni the spitting image of Zoe, with her natural hair, face, "AHEM", to confirm voice, and a quick grab of the chest confirmed that she had a small amount of extra padding to plump up her natural C cup breasts. She also had just ran over to the mirror in a pair of 3 inch heels that just a second ago, she could barely stand up in. Memories popped into Jon's mind, and she remembered everything she needed to do to help Jessica into her dress, all of her roles for today, and even the speech she worked on for her toast tonight. She even remembered all of the steps to the dances, and the march dance they arranged to do for the reception. As the Zoe replacement, Jon now was fully equipped for her new role.
As she cleaned herself up, she started walking towards the door and thought of Jessica's future Brother-in-Law, what a hottie he is, and to think, Joni gets to dance with him tonight since he is the best man, and her escort.
This might not end well for Joni.