Harley Quinn’s biggest adventure 9 (Patreon)

The day before the convention, Bailey helped Britt to try a lot of Harley Quinn's costumes. It also had a powerful effect on him. At each costume he tried, another bit of his old self was going away, being replaced by his new personality. 

The feminized man had never felt so alive… His pussy got soaking wet and his nipples hard as he imagined how much attention he would draw at the convention. Yes, he would be a star there. Everyone would lust after his perfect body... 

He got surprised to learn that Bailey had changed her mind, and would no longer go to the convention dressed as the Joker. 

"Just think about it for a minute, honey" she said. "The Joker is a man, right?" 

“Y-yes… Of course my puddin’ is a man…” Britt said, confused, but happy to think about the Joker. 

“So it wouldn't be right for me to dress like him... I'll wear another costume..." 

“I… I guess you’re right…” 

Bailey smiled, realizing that her plan was working perfectly well. Britt's mind had been so altered that he just couldn’t realize how weak her excuse for not going to the convention dressed as the Joker was. 

She thought he looked very hot dressed as a modern Harley Quinn from the Suicide Squad movie, but in the end she persuaded him to choose the classic Harley’s costume. 

Bailey had always had a strange urge of feminizing a guy. When Britt called her out – already knowing he had a big crush on her – she thought that would be a perfect opportunity to indulge her fantasies. At first, she hadn't planned to go so far, but after she started to feminize Britt, she simply couldn't stop herself. Just crossdressing wouldn't be enough, oh no! She wanted him to be a full woman.

Being from a very wealthy family, she had no trouble funding his transformation, and finding the right people to help her in the project. She was absolutely sure that her effort had paid off. Britt looked perfect now. She could hardly wait for the next day...