I've noticed that quite a few pictures depicting fellatio and post-fellatio scenes show the individual who gave the blowjob with signs of having their mouth full (of cum, obviously)-- cheeks bulging, cum bursting out of their mouth, cum dribbling from their mouth, and of course there's that thing that they do where they open their mouth to show the cum inside before they swallow it.
Examples:
post #636023 post #177725 post #551868 post #644859 post #665430
post #566835 post #496590 post #496591 post #498048 post #484193
post #475479 post #305301 post #665488 post #414402 post #293050
post #416227 post #296850 post #673062 post #319884 post #290564
post #374540 post #300221 post #376243 post #346525 post #274874
For images like these, I'd like to propose the addition of either a "mouth_full" or "mouthful_of_cum" tag. Thoughts?
(Note that such a tag would also imply the "cum_in_mouth" tag.)
Updated