Whether coloring or sketching I am curiius.
For me I just about always do. If I am sketching or cleaning up lien art I will let loose in a diaper till its soaked. Other than that… A finished piece of art will have many sessions squirts. Though admitedly in a dry Rearze trianing padding.
I suppose with my art being traditional theres a lot of time involved. Especially in color pencils. Plus I am rather easily satisfied sexually. I have my kinks, but even then they are not needed every time.
Lastly I do art for the soul purpose of expressing emotions. For me I am not always concerned with mistakes. After toying with a sketch on a light table several different times I start coloring. The best squirts I had was with art I did.