Charlie

First through the door was Jake's wife Charlie. At first glance, his wife did not seem any different than before. Her appearance was the same, as was her voice (she was talking on the phone). Even her mannerisms were similar. All that came crashing down when she finally address him after hanging up the phone.

"Hey Dad, what's for dinner?" she asked.

Jake stood there with his mouth wide open. His wife, and the mother of his kids just addressed him as Dad, and she was serious. Jake couldn't process this in real time.

"Hello! Anybody home? I said, what's for dinner Dad?" Charlie said.

"Umm, sorry sweetie. I was going to make pasta. Does that sound okay?"

"Yeah, sounds great. I'll be in my room if you need me." she says, before heading off to your daughters room.

Jake didn't know how to proceed. Even with the simple things. Like did he call her Charlie or Kristi? She looked like Charlie, but acted like Kristi. Does she go to college tomorrow or to Charlie's work? How did everybody else react to this change? Or did they even know about the change?

Before Jake could fall further down the rabbit hole, Kristi walked through the door.

"Hey Honey, I'm home." she said, walking straight towards you.

You stood still, not knowing what to call her. Kristi walked straight up to you and planted a quick peck on your lips. You recoiled in disgust. Obviously the look on your face hurt Kristi's feelings.

"What? Have I aged that terribly today? We have kissed each other for over 18 years, do I really disgust you that much?" she said, her feelings clearly hurt.

"Umm, sorry Honey, it's been a long day. I'll make it up to you." you say quickly.

"You better." she says, before brushing her hand across your cock.

Jake watched Kristi leave the room before trying to collect his thoughts. Clearly it seems like their minds have swapped completely. The mind inside Kristi remembers when Charlie and him first started dating. This should mean that he can call Kristi's body Charlie and she should react fine.