The first step to being panty trained is to train yourself to orgasm every single time you pee.
Yes. That's possible.
Here is how.
Every time you go to pee, do the following:
I call this peegasming.
Continue doing this every single time you go to pee. Never pee without doing so.
This will train your pussy to orgasm whenever you pee.
After about two weeks of doing so, it will feel natural and be easy to pee this way.
After three to four weeks of doing so, you will be peegasming without rubbing your clit.
As you continue, it will become impossible to pee without peegasming. Unless you undo the training, you'll be orgasming every single time you pee the rest of your life!
Since this is step one, that leads to step two. Step two begins once you have trained to peegasm every time, love doing so, and want more.