I am,,painting,, on his with different whips: experimenting how colors and whip are interacting on human skin.
My slave is suffering in silence, taking all the hard strokes on his back – so, he is a good human canvas!
The other slave, I used as an object! His ass made the perfect holder for My painting brushes and his balls sack is very good for cleaning the brushes!
For what position you would apply? - human canvas or, brushes holder?