What kind of plan does Josh write?

He offers to update his own profile

As the minutes pass, Josh types away, deletes, types, deletes, types. It's hard to know what to write: whatever he writes he will have to do, but anything he doesn't write he may have to do double.

Why wasn't he more careful about what he wrote online? He knew that the new law was in effect, so why did he have to push his luck?

In the end, Josh tries to follow the guidance that he was given: he has to offer to experience the selfishness and objectification that he made Rachel suffer, along with the other women that she will presumably find on his phone.

So he writes a plan:

I will publish a profile offering all of the sex acts that I selfishly demanded, adjusted as needed (e.g. blowjobs to cunnilingus, etc.).

Josh feels happy with himself, but realizes that Rachel won't let him off this easy: all he would have to do is sit there and watch the messages come in. Which for a guy on the internet, won't be a lot.

He thinks for a bit, and adds some new text

I will perform each act at least once during the month. I will offer myself purely as a sex object, and not ask for, or accept, any kind of romance or reciprocation.

Hopefully the last part will convince Rachel that he will experience objectification first-hand. It seems risky, though: what if he has trouble finding someone to do these things with? But Josh soon convinces himself otherwise. He isn't terrible-looking, so he can always go chubby-chasing if no-one answers his ad. Not that looking up at the fat rolls of someone riding his face, like he asked that curvy latina to do, is his idea of a great time. But then it probably shouldn't be, if Rachel is going to accept the plan without any punitive changes.