Step 1: Move the laptop to a spot beside your lap. Allow cat to establish ownership of both laptop and lap.
Step 2: Allow cat to lay down and flop tail all over keyboard, thus telling you that you still have not sacrificed enough lap to the cat.
Step 3: Exile laptop to other side of lap. Type at awkward angle whilst cat chills.
(Silly hooman, you didn’t think the cat would allow you to keep your laptop in your lap, did you? Kittehs don’t share! What are you, some kind of dog owner or something?)
Step 4: Finally, muscles aching, set aside the laptop for a few moments. The cat will promptly lay upon it, ensuring there will be no more of this productivity nonsense.
Remember: you live to serve the kitteh. And all of your possessions are belong to her.