Possible sounds of pen or pencil on paper: scritching, rasping, scratching, whispering, hissing... You could also invent onomatopoetic words: phhhhhht, shish, crrrrrrrr, wishawashiwisha, ksksksks... Instead of touch (depending on what is actually being written and the manner in which it is written): grace, profane, kiss, dance, slide across, skip, scratch, press, grind, flit, float, drag, plod... Really any verb that describes motion could work... My pen scritched with a reluctant krikakrakakrrrrr, plodding across the page as I finally responded to my father's impertinent criticisms. I could hear the hissing sisssusssisssisus of my sister's pencil in the next room. I could picture her pencil sliding, skipping and sweeping across the pages of her journal as she revealed our family secrets without remorse. With a whispered phhhht, Gloria's pen kissed the paper and left behind one mysterious and enigmatic swirl.

Hi, it is not weird. You remind me, in particular, the italian poet Tommaso Marinetti, famous for having written poems using onomatopoeias I think Novelists have this problem frequently, especially those who love to describe things very well. In my opinion therefore, if there is no precise sound to describe what you refer to (eg. What is the sound of a falling leave in a not existing forest?), you might simply LET THE READER IMAGINE THAT FOR YOU: -- in the case of the pen, I'd say for example: "... with that typical rustle of the pen writing on the paper ... " so everyone might simply imagine what they think it's the most appropriate RUSTLE. It deals of a good trick, and it has a noticeable place in the Theory of Perception in any art field. For exampe, see Seurat's "Divisionism". Above all, in creative writing you could even INVENT a new word, if the shape fits the purpose, and if this word might even pass as legitimate. Onomatopoeia has no such boundaries. I hope you might have some further inspiration from this video: -- Once Upon A Candle (from "The Animation Workshop") https://goo.gl/PiwXkK

how about "my pen scratched on the paper."?