There are some guys who get hard doing scat scenes and some dommes will begin or have as part of the scene scat on the cock or genitals. A lot of scenes go to full consumption, obviously. If the scat has been on or near the cock, or even if not, does it happen often or much that
1) the domme gives the guy some tease and denial or stimulation and he comes;
and
2) his own cum is part of what he must eat?