Let's say I spill some coffee or soda on my laptop, and that makes is very sticky and impossible to work with,

So my friend asks me

> 
> What is wrong with your laptop, why is it so sticky?
> 
> 
> 

So what should I say about the coffee or soda?

> 
> There is coffee **sticking on my** keyboard or screen.
> 
> 
> 

Is the last phrase natural or idiomatic? If not, can anyone suggest me a corrected version?