Shudders as she becomes subservient to Sara...

“Wait Sara... Oh...” he shivered as he went from equal footing with his girlfriend to subservient to her. The only good thing was that Sara hadn’t told her to do anything yet. “Can I please have my phone mistress?” He asked. That last honorific came unbidden to his lips.

Sara passed over the phone. “Mistress? What are you talking about Josie?” He shivered at the new name. He was Josie now.... not Josh. That was what his mistress called him and he obeyed.

He wanted to change the settings but was compelled to answer. “The app. It... whatever you set it on becomes a reality. So I’m shorter than you and now I’m subservient mistress.”

Sara laughed unbelievingly. “You’re such a silly girl sometime Josie. Now put away the phone and get to work.”

Josie nodded. She was sometime a silly girl. Or so her mistress expected. She frowned as she realised she was acting per Sara’s desires. She was a she? She started to prepare the food. As she did Sara picked up her phone and took it out to show Aaron. Josie watched in concern.

She heard laughter beyond and then shuddered as she suddenly grew shorter again. They were using the phone... how was she aware of the changes. The moaned in sudden arousal. Suddenly she couldn’t think about cooking. She needed sex. She shivered as she pulled her yoga pants down and stared at her new sex. Her pussy. It was wet and swollen. She rubbed at it, dropping to her knees on the floor. “Oh god,” she moaned.

Aaron walked in, a clearly horny Sara following. “So Josie... What is this?” He asked.