At the precinct.
Castle called Alexis in the car and asked if she wanted the internship, she did.

It turned out Gates was in a meeting that morning and was out but she would be back in a couple of hours. Luckily for us it was just a paperwork day. I was able to see her as soon as she got back. To get the next part of the plan in action. I knocked on the door "Gates sir, Can I come in?"

"Yes Beckett what do you want."
I come in and sat down on the chair.
"You know how you are looking for an intern to help with all the backlog around here."

"Yes you offering."

"No I was wondering if you would hire Alexis Castle she is the mature one between her and Castle. She has worked at the precinct before. She did an amazing job when she was here. You can ask anyone on the homicide floor. Here are her records from school. She has enough credits to have graduated before Christmas do she's just waiting now to go away to college in September.

"I'll have a look Beckett but I don't know if I would want to hire another Castle. One is bad enough."

"You won't regret it if you do sir."

I knew there was no way she couldn't hire Alexis. Just as I got back to my desk. Espo, Ryan and Castle. Where getting Off the lift with food so I change my course to the break room. We ate lunch and talked about the latest game. The rest of the day was quite boring jut more an more paperwork. That is until Alexis walked off the elevator being escorted by a uni and was waltzed straight into Gates office around dinner time. Which could only mean one thing Gates had decided to give her a chance. Once she had talked to Alexis there was no way she wouldn't hire her. So stage 1 implemented.