Both scratching and biting can involve bodily fluids if the skin is broken, so be extremely mindful of STD’s and other hygiene matters.
Start very slow with both techniques and increase them with the help of the number system, if necessary.
Both techniques will leave marks and potentially scars.
1) How did this demonstration resonate for you?
2) Do you enjoy being scratched?
3) Do you see yourself as an animalistic person?
4) Have you or those you play with changed the levels of intensity of the sensations being given?
5) What would a scratching and biting scene look like to you?
6) Do you like to play with fear and anticipation?