Dear Little Cat,
you are very soft, and very cute, and very cuddly. You are also a very friendly cat, and I do appreciate that you like to be in my company. I like to be in your company, too.
I can also understand that you wish to be petted from time to time, and that a nap close to someone you love is much better than just a nap. Finally, I am delighted that you take an interest in my work, and sometimes wish to participate.
However, you curling up on my desk? Especially in a way that means your paw rests on my laptop's touchpad?