Well, these were unpredictable results. Used a pen, next time, I will try a pencil.
The pen may have had an outside texture that promoted sticking, unsure.
Right side, dropped to the floor.

Left side, pen held in the inframammary crease.
Will need to try with a wooden pencil to see if that makes a difference.
Left breast is the bigger one, they are not twins.

Chrissy