When a little girl says she wants to go as a bride you get a mischievous idea. When she put on the costume and became a busty grown woman you included a few extra changes. You give her a massive fetish for married men and women, and that married individuals will find themselves attracted to her despite sexual orientation and wont see having sex with her as cheating.
Lastly for fun you also include any time she attends a wedding she'll become extremely horny and slutty but no one will mind what she does in this state. The new women twirls around in front of a mirror for awhile before her mother pays and they leave together.